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File extension formats

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File extension formats Powered By Docstoc
					###    Temp file;QTIC                 #nn       Part of file image;Long



       Printer data file for 24 pin
#24                                   #IB       Printer data file;LogoScript
       matrix printer;LogoScript


                                                Standard mode printer
#SC    Printer data file;LogoScript   #ST
                                                definitions;LogoScript


       OS/2 archive file (i.e
$$$                                 $$$         Temporary file;
       archives.$$$, keys.$$$);OS/2


       ZX Spectrum file in HOBETA
$?                                    $00       Pipe file;DOS
       format;



$DB    Temporary file;dBASE IV        $ED       Editor temporary file;MS C



                                                Virtual manager temporary
$O1    Pipe file;DOS                  $VM
                                                file;Windows 3.x


       LHA archiver temporary
)2 (                                  ??$       Backup file;P-CAD
       file;LHA



??_    Microsoft packed file;Expand   ?DK       Disk image;Loaddskf.exe



       Nonpacked FTN mail (? -
?UT                                   ___       Adinf table;Adinf
       flavor);FTN software



_Q_    Archive;CP/M Squeeze           ~$~       Temporary file;1st Reader


       Old [BackUp] files (.MNU to
                                                Compressed harddisk
~??    .~MN);Resource Workshop -            0
                                                data;DoubleSpace
       Borland Delphi

                                                Netware unicode rule table
       Arj archive volumes up to
nnn                                   nnn       (e.g. 1250_Uni.036);Novell
       999;ARJ
                                                Netware
            News about smth with ext. of                  RAR archive volumes up to
nnn                                          nnn
            ver. number;                                  999;RAR


            Compressed harddisk
       0                                             1 Fax;
            data;DoubleSpace


            75x75 dpi display font;Ventura                85x85 dpi display
      75                                            85
            Publisher                                     font;Ventura Publisher


            91x91 dpi display font;Ventura                96x96 dpi display
      91                                            96
            Publisher                                     font;Ventura Publisher


            Printer font with lineDraw
0B          extended character                       1 Fax;many
            set;PageMaker


            Roff/nroff/troff/groff source for             Printer font with PI font
       1                                      15U
            manual page;cawf2.zip                         set;PageMaker


            Usually README.1ST text
1ST                                          2GR          286 Grabber File;Win
            file;


            Fax;Super FAX 2000 - Fax-                     Intel 80386 processor
      301                                           386
            Mail 96                                       driver;Windows 3.x


            Windows virtual device                        QuickDraw 3D
      386                                    3DMF
            driver;Win                                    Metafile;QuickDraw


            3D Studio Graphics format;3D
3DS                                      3FX              Effect;CorelChart
            Studio


                                                          Binary file converter to
3GR         386 Grabber File;Win             3T4
                                                          ASCII;Util3



4C$         Datafile;4Cast/2                 4MD          Musical file;



                                                          FORTH source code
4SW         4DOS Swap File;4DOS              4TH
                                                          file;ForthCMP - LMI Forth
            Music (the mixing is always at               Music (8 channels);The 669
      668                                          669
            12048 Hz);                                   Composer


            Music (6 Channel                             75x75 dpi display
6CM                                                75
            Module);Triton FastTracker                   font;Ventura Publisher


            A86 assembler source code                    85x85 dpi display
       8                                           85
            file;                                        font;Ventura Publisher


                                                         Printer font with Math 8
            Music (8 Channel
8CM                                          8M          extended character
            Module);Triton FastTracker
                                                         set;PageMaker

            Printer font with Roman 8
                                                         91x91 dpi display
8U          extended character                     91
                                                         font;Ventura Publisher
            set;PageMaker


            96x96 dpi display font;Ventura
      96
            Publisher



A           ADA source code file;            A           Library;unix



Ann         Multi volume ARJ archive;ARJ A11             Graphics AIIM image file;



AAS         Animation Play Script;AAPlay AB6             Datafile;ABStat



                                                         Document;ABC FlowCharter
AB8         Datafile;ABStat                  ABC
                                                         1.0


            Adobe Binary Screen                          Automatic backup
ABF                                          ABK
            Font;Adobe Software                          file;CorelDRAW


                                                         Adobe Brush file for
ABM         Image PALS album file;           ABR
                                                         PhotoShop;PhotoShop



ABS         Abstracts (info file);           ABS         Data file;Abscissa
       Project;Project Manager
ACA                              ACB   Archive;ACB
       Workbench


                                       Program (DR-DOS -
ACB    see ACMB;                 ACC
                                       ViewMax);GEM / resident


       Adobe Custom Filter for         Audio Compression Module
ACF                              ACM
       PhotoShop;PhotoShop             add-on;Win



ACMB   Graphics file;            ACO   Adobe Color Palette;


                                       Animations Works Actor
       ACTOR source code
ACT                              ACT   (Graphics cell);Animation
       file;ACTOR
                                       Works


       FoxDoc Action
ACT                              ACT   Presentation;Action!
       Diagrams;FoxPro


       AfterDark screensaver           ADPCM 2-bit compressed
AD                               AD2
       module;AfterDark                voice file;ZFAX


       ADPCM 3-bit compressed
AD3                              ADA   ADA source code file;
       voice file;ZFAX


                                       Bitmap graphics (16
ADB    Ada Package Body;         ADC
                                       colors);Scanstudio



ADC    Dictionary;Lingvo         ADD   OS/2 adapter device driver;



                                       MCA adapter description
ADI    Graphics file;AutoCAD     ADL
                                       library;QEMM


       After Dark support
ADM                              ADN   Add-in;Lotus 1-2-3
       file;AfterDark


       After Dark support
ADR                              ADS   Ada Package Specification;
       file;AfterDark
       Datafile for cardfile
ADT                                     ADT    Dictionary;Lingvo
       application;HP NewWave


                                               GUS device
ADT    Fax;AdTech                       ADV
                                               driver;Gf166.com


       Document;Archetype                      Flowchart;ABC FlowCharter
ADX                                     AF2
       Designer                                2.0


       Flowchart;ABC FlowCharter
AF3                                     AFI    Truevision bitmap graphics;
       3.0


       Font file (for Allways);Lotus 1-        Datafile for cardfile
AFL                                     AFM
       2-3                                     application;HP NewWave


       Type 1 font metric ASCII data           Shape palette;ABC
AFM                                  AFP
       for font installer;ATM - many           FlowCharter


       Template;ABC FlowCharter                Workplace;ABC
AFT                                     AFW
       3.0                                     FlowCharter 3.0


       Vector graphics file;Adobe
AI                                      AIF    see AIFF;
       Ilustrator


                                               Audio Interchange Format
AIFC   Sound;                           AIFF   File (AIFF);Convert (c)
                                               Villena


       Asm Text Mode Image
AiM                                     AIN    Archive;AIN
       File;The Ultimate Draw


                                               Array of Intensity Samples
AIO    APL file transfer format file;   AIS
                                               graphics file;Xerox


       Datafile for cardfile
AIX                                     ALG    Activity Log;ARCSOLO
       application;HP NewWave


       ----- (Arts & Letters) symbol
ALL                                     ALL    Filelist w/ all files;FRQView
       and font files;Arts & Letters
                                           General printer
      Format file for working
ALL                                ALL     information;WordPerfect for
      pages;Always
                                           Win


                                           Menu file;WordPerfect
ALO   Almanac support file;        ALT
                                           Library


      Music (Advanced Module
AMF                                AMG     Archive;AMGC
      Format);DMP


                                           Adobe Monitor Setup
AMG   System image file;ACTOR      AMS
                                           calibration file;PhotoShop



AMS   Music format;                ANI     Animation;IconAuthor



      Animation cursors for                Animation;Deluxe Paint
ANI                                ANM
      Win;Win95 - WinNT                    Animator


                                           ANSI character graphics
ANN   Help Annotations;Windows 3.x ANS
                                           (animation) file;ANSView


      ASCII text ANSI character            America On-line for
ANS                                AOL
      set;NewWave Write                    Windows DLL;Win



AOS   Add-On Software;Nokia 9000 AP        Archive;WHAP



AP    Datafile;Datalex EntryPoint 90 APC   Printer driver;Lotus 1-2-3



APD   Printer driver;Lotus 1-2-3   APF     Printer driver;Lotus 1-2-3



      Adobe Printer Ink file for           Passed parameter file;1st
API                                API
      PhotoShop;PhotoShop                  Reader



API   Printer driver;Lotus 1-2-3   APL     APL work space format file;
      Support module used by                Authorware
APL                                   APM
      Manugraphics APL products;            Macintosh;Authorware


      Add-in application
APP                                   APP   Application;FoxPro
      file;Symphony


                                            Executable application
      Application object file;dBASE
APP                                   APP   file;DR-DOS - NeXTstep -
      Application Generator
                                            Atari


                                            Employee performance
APP   Generated application;FoxPro APR
                                            review;Employee Appraiser


      Authorware                            Appexpert database
APW                                   APX
      Windows;Authorware                    file;Borland C++ 4.5


      Archive;ARC -
ARC   PKARC/PKXARC - PKPAS -          ARC   Archive;SQUASH
      PKUNPAK - QUARK


ARF   Automatic Response File;        ARH   Archivers definitions file;DN



ARI   Archive;ARI                     ARJ   Archive;ARJ - ARJZ



      ARC archive;CP/M port of
ARK                                   ARK   Archive;QUARK
      ARC file archiver


      Managing your Money Archive
ARK                               ARR       Arrangement;Atari Cubase
      File;


      First Publisher graphic               Graphics (scrapbook);Art
ART                                   ART
      file;First Publisher                  Import


      Graphics format (Another Ray
ART   Tracer);PFS:1st publisher - Art ARX   Archive;ARX
      Import


ASC   ASCII text file;                ASC   Transport armor file;PGP
ASD   Autosave file;MS Word          ASD   Presentation;Astound



                                           Velvet Studio
ASD   Screen driver;Lotus 1-2-3      ASE
                                           Sample;AWAVE



ASF   Datafile;STATGRAPHICS          ASF   Screen font;Lotus 1-2-3



      Assembly language header
ASH                                  ASI   ASIC language source;ASIC
      file;TASM 3.0


      Assembler include file;Turbo         Assembler language
ASI                                  ASM
      C - Borland C++                      source;TASM - MASM


      Assembler object (object
                                           ASPECT source code
ASO   orientated) file;Turbo         ASP
                                           file;Procomm Plus
      Assembler

      Association of Shareware
                                           Adobe Color Separtion table
ASP   Professionals                  AST
                                           for PhotoShop;PhotoShop
      OMBUDSMN.ASP notice;


                                           Auto template;Aldus
ASW   Authorware Star;Authorware     AT2
                                           Persuasion 2.0


      Adobe Type Manager
ATM                                  ATT   AT&T Group;GCGW
      data/info;


      Sound (audio) file;SUN
                                           Sun/NeXT/DEC Audio
AU    Microsystems - Convert (c)     AU
                                           file;AWAVE, GoldWave
      Villena


                                           Auxiliary
AUD   Audio file;AudioRack           AUX
                                           dictionary;ChiWriter


      Auxiliary
AUX                                  AVA   Publication;Avagio
      references;TeX/LaTeX


                                           Audio Video Interleaved
AVB   AntiViral Toolkit Pro Bases;   AVI   animation file;Video for
                                           Windows
      Audio Visual                        Application Visualization
AVR                                 AVS
      Research;AWAVE                      System;



AVT   AVATAR-coding files;A3E       AW    Text file;HP AdvanceWrite


      Animations Works
                                          Microsoft Fax At Work
AWA   Accelerated Movie;Animation   AWD
                                          Document;MS Fax At Work
      Works


                                          Animations Works Movie
AWK   AWK script/program;           AWM
                                          (as .AVI);Animation Works



AWS   Data;STATGRAPHICS



                                          Black and white graphics
B     Batch list;APPLAUSE           B&W
                                          file;atari - mac


      Mono binary screen image;1st        Black and white graphics
B&W                                B_W
      Reader                              file;atari - mac


      Both mono and color binary          Printer font (JLaser -
B1N                                 B30
      screen image;1st Reader             Cordata);Ventura Publisher


      Raw graphics file (one byte
B8                                  BAD   Bad file;Oracle - many
      per pixel) plane two;PicLab



BAK   Backup file;                  BAL   Music score;Ballade


      Horizontal bar menu object
                                          Info Bar for
BAR   file;dBASE Application        BAR
                                          GFX2EXE;GFX2EXE
      Generator

      BASIC language
BAS   source;QuickBASIC - GW-       BAT   Batch file;DOS
      BASIC


                                          Bibliographic reference
BB    Database backup;Papyrus       BBL
                                          file;TeX/BibTeX
                                           Bulletin Board System
BBM   Brush;Deluxe Paint           BBS
                                           announce or text info file;


                                           Batch process object
      Hudson-style
BBS                                BCH     file;dBASE Application
      messagebase;FTN software
                                           Generator


                                           Outline font
BCH   Datafile;Datalex EntryPoint 90 BCO
                                           description;Bitstream



BCP   Borland C++ makefile;        BCT     Backup dictionary;Clarion



      Environment settings;Borland
BCW                                BDC     Dictionary;Lingvo
      C++ 4.5


      Adobe Glyph Bitmap                   Binary update
BDF   Distribution Format;Adobe    BDF     file;BUPDATE.EXE (c) TNT
      Software                             Techn.


      Bitmap Distribution Format
BDF                                BDF     Datafile;Egret
      font file;X11



BDR   Border;MS Publisher          BDT     Dictionary;Lingvo



      Outline font
BEZ                                BF2     Bradford 2 font;
      description;Bitstream



BFC   Briefcase Win95;Win95        BFM     Font metrics;unix/Frame



BFX   Fax;BitFax                   BGA     Bitmap graphics;


      Borland Graphics Interface
                                           BASIC include file;Visual
BGI   device driver;Turbo C - Turbo BI
                                           Basic
      Pascal


                                           Database - not compatible
BIB   Bibliography (ASCII);        BIB
                                           with TeX format;Papyrus
                                              Binary Image Format b&w
      Literature
BIB                                     BIF   graphics file;Image Capture
      database;TeX/BibTeX
                                              board


      Binary file, usually zero-start
BIN                                     BIN   SGI Powerflip;
      (.com analog);


      Text mode memory dump;The
BIN                               BIO         OS2 BIOS;
      Draw - TUD - ACiDDraw - etc



BIT   Bitmap X11;                       BK    Faxbook;JetFax


                                              Timed backup file for
      Document
BK!                                     BKn   document window
      backup;WordPerfect for Win
                                              n;WordPerfect for Win


                                              Backup file;Write -
BK?   Backup file;                      BKP
                                              TurboVidion DialogDesigner


      Mirror image of font
BKW                                     BLD   BLoaDable picture;BASIC
      set;FontEdit


                                              Temporary file;WordPerfect
BLG   Backup Log;ARCSOLO                BLK
                                              for Win


                                              Help Bookmarks;Windows
BM    BitMap graphics file;             BMK
                                              3.x

      OS/2 or Win graphics format
      (BitMap Picture);QPeg -
BMP                                     BMT   Ami Pro Button;Ami Pro
      CorelDraw - PC Paintbrush -
      many

                                              Graphics Banner;Banner -
BNK   Adlib instrument bank file;       BNR
                                              Poster

                                              Compressed file ASCII
                                              archive created by BOO
BOO   Book-format;READIBM               BOO
                                              (msbooasm.arc);msbooasm
                                              .arc


BPC   Chart;Business Plan Toolkit       BPP   Backup application;Clarion
BPT    Bitmap fills file;CorelDRAW   BR       Script;Bridge



BRD    Eagle Layout File;            BRK      Fax;Brooktrout Fax-Mail



       The Brake! Mailer REXX                 CAD;Ballistic Research
BRK                                  BRL
       script;The Brake!                      Laboratory CAD;BRL



BS2    Archive;BS2.EXE               BSA      Archive;BSArc


       Compressed Apple II file
BSC    archive created by            BSC      Database;Source Browser
       BINSCII;BINSCII


       Pwbrmake object file;MS
BSC                                  BSS      Casio Phone base;PC-LINK
       Fortran


       BiblioTex file
BST    (BiblioTex=bibliography       BSY      Busy flag;FTN soft
       file);TeX


       Batch-to-memory (quick
BTM                                  BTN      Makeover Button file;
       batch);4dos -ndos


       Binary Universal Form for the
BUFR                                 BUFR     Meteorological Data;
       Representation;



BUG    Bugs and Problems;            BUP      Backup file;



BUT    Button definitions;Buttons!   BUY      Datafile format;movie



       Overflow file below insert point       Spreadsheet
BVn                                     BWB
       in Doc n;WordPerfect for Win           application;Visual Baler



BWR    Beware (buglist);Kermit       BYU      BYU Movie;BYU
       C language source;Watcom
C                                     C      Unix file archive;COMPACT
       C/C++


       C-- language source;Sphinx C-
C--                                  C++     C++ language source;
       -



C00    Print file;Ventura Publisher   C01    Typhoon wave files;AWAVE



       C source code file;Computer           Initial cache data for root
C86                                   CA
       Innovation C86                        domain servers ;Telnet


       Borland packed and splitted
CA?                                   CAB    Win 95 packed file;Win 95
       file;Borland Installer


       dBASE IV executable when
                                             Document;Drafix Windows
CAC    caching on/off (see            CAD
                                             CAD
       cachedb.bat);


                                             Spreadsheet
CAL    Calendar file;Windows 3.x      CAL
                                             format;SuperCalc


       Computer Aided Acquisition
CALS                                  CALS   Support Raster Format;
       and Logistics;



CAM    Casio Camera;                  CAN    Fax;Navigator Fax



                                             Capture file;ProComm -
CAP    Caption;Ventura Publisher      CAP
                                             Telix


       C + ASM language                      Catalog;CP Backup -
CAS                                   CAT
       source;Turbo C                        dBASE IV



CBC    Fuzzy logic system;CubiCalc    CBL    COBOL source code file;



       Compiled bitmap                       MasterWord button bar
CBM                                   CBS
       graphics;XLib                         configuration file;
        Computer Based
CBT                                  CC    C++ source code file;
        Training;many


                                           Bitmap graphics (native
CC      CC language source;CC        CCC
                                           format);Curtain Call


        Communications configuration
CCF                                  CCH   Chart;CorelChart
        file;Symphony


        CCITT Group 3 and Group 4          Communication Command
CCITT                                CCL
        Encoding;                          Language file;Intalk



CCO     BTX Graphics file;XBTX       CD    CD description;DN



CDA     CD-Audio;Win95               CDB   Card database;CardScan



        Main database;TCU Turbo C
CDB                                  CDF   Common Data Format;
        Utilities


        Cyberspace Description
CDF                                  CDF   Graphics;netcdf
        Format;


                                           CADKey CADL
CDK     Document;Atari Calamus       CDL
                                           Language;CADKey


        Disk Drivers NPA;Novell
CDM                                  CDM   Music format (compressed);
        NetWare


        Vector graphics format             Corel Draw Template
CDR                                  CDT
        (drawing);CorelDraw!               File;CorelDraw!


                                           Computer Eyes;Conversion
CDX     Compaund index file;FoxPro   CE
                                           Artist


        Main.ce;The FarSide                Cont. Edge
CE                                   CEB
        Computer Calendar                  Bitmap;Conversion Artist
      CA-Clipper Workbench
CEF                                CEF     Export File;
      Application;CA Clipper


      Bitmap graphics;Tempra
CEG   Show - Edsun Continuous      CEL     Animation CEL;3D Studio
      Edge Graphics


      Graphics;Autodesk Animator -
CEL                                CF      Configuration file;imake
      Lumena



CFG   Configuration file;          CFL     Chart;CorelFLOW


                                           C Form Object internal
CFN   Font data;Atari Calamus      CFO     format object file;TCU Turbo
                                           C Utilities


      Fax;The Complete Fax                 CFast graphics file;Disney
CFP                                CFT
      Portable                             Animation Studio


      CGA display font;Ventura             Common Gateway Interface
CGA                                CGI
      Publisher                            script;


      Computer Graphics Metafile
                                           Clipper language header;CA
CGM   vector graphics;A&L - HG -   CH
                                           Clipper
      many


CH3   Chart;Harvard Graphics 3.0   CH4     Presentation;Charisma 4.0


                                           ChiWriter
      Font
CHD                                CHI     Document;ChiWriter -
      descriptor;FontChameleon
                                           Chiview


      Recovered data;DOS                   Temporary file;WordPerfect
CHK                                CHK
      CHKDSK                               for Win



CHL   Configuration History Log;   CHN     Data;Ethnograph 3



                                           Character set ;Turbo C -
CHP   Chapter file;Ventura Publisher CHR
                                           Turbo Pascal
      Chart;Harvard Graphics 2.0 -           CHeaT in any
CHT                                    CHT
      SoftCraft Presenter                    program/game;many


      Interface file for
CHT                                    CHZ   Archive;CHARC
      ChartMaster;dBASE


      Caltech Intermediate Format            Chapter information;Ventura
CIF                                    CIF
      graphics file;                         Publisher


      C Text Mode Image File;The             Database index;TCU Turbo
CiM                                    CIX
      Ultimate Draw                          C Utilities


      Borland C++ 4.x editor                 COMMON LISP source
CKB                             CL
      keystroke mapping;BCW.EXE              code file;


                                             Clipper debugger
CLA   Source;Clarion                   CLD
                                             configuration file;CA Clipper


      Clip art graphics file;Quattro
CLP                                    CLP   Clipboard file;Windows 3.x
      Pro


      Compiler response file;CA              Graphics
CLP                                    CLP
      Clipper                                format;PCPAINT/Pictor


      Color binary screen image;1st
CLR                                 CLR      Color definitions;Photostyler
      Reader



CLR   Color scheme;Boxer/2             CLR   Palette file for GIS format;



                                             MFC Class Wizard
CLS   C++ class definition file;       CLW
                                             information;MS VC++


                                             Xtree for Windows Button
CM    Data file;CraftMan               CMB
                                             Bar file;


                                             External command
CMD   Command;dBASE - Waffle           CMD
                                             menu;1st Reader
                                          FM-music file (Creative
CMD   OS/2 batch/REXX file;OS/2     CMF
                                          Music File);


                                          CMM script (batch)
CMK   Card;Card Shop Plus           CMM
                                          file;CEnvi


                                          Compressed data;PKWare
      Bitmap graphics (Lead CMP
CMP                                 CMP   Inc. data compression
      compression);
                                          library


      Header file for PostScript          Photofinish Calibration
CMP                                 CMP
      printer files;CorelDRAW             Map;Photofinish


      User dictionary;MS Word for         Carnegie Mellon University
CMP                                 CMU
      DOS                                 Formats;


      Animation (CorelMove
CMV   CorelDraw 4.0);CorelMove      CNC   CNC general program data;
      CorelDraw 4.0

      Configuration (program -
CNF   printer setup);program -      CNF   Configuration file;
      printer setup

                                          Winword DLL used as part
      Temporary file;WordPerfect
CNV                                 CNV   of an import operation
      for Win
                                          (CNV=converter);MS Word


      Calgari trueSpace2 File
COB                                 COB   COBOL source code file;
      Format;


                                          Datafile;Forecast Plus - MS
COD   Code definition table;UUPC    COD
                                          Multiplan - StatPac Gold


      file uncluding CODES for any        Printer code definition
COD                                COD
      program/game;many                   file;Boxer/2


      Program compiled                    Template source file;dBASE
COD                                 COD
      code;FORTRAN                        Application Generator


                                          Color palette;Autodesk
COD   Videotext file;               COL
                                          Animator - many
                                           Command (memory image
COL   Spreadsheet;MS Multiplan       COM   of executable
                                           program);DOS

                                           Compressed
CON   Configuration file;Simdir      CPC   image;Cartesian Perceptual
                                           Compression


CPD   Script;Complaints Desk         CPF   Fax;The Complete Fax



      ColorLab Processed Image             MS-DOS codepage
CPI                                  CPI
      bitmapped graphics file;             file;MODE.EXE



CPL   Control panel file;Windows 3.x CPL   Presentation;Compel



      C++ language source;Watcom           Presentation;CA-Cricket
CPP                              CPP
      C/C++                                Presents


                                           ----- backup of startup files
CPR   Knowledge Access;GCGW          CPS
                                           by QEMM (?) autoexec.cps;


                                           Mac file archive;COMPACT
CPT   Encrypted memo file;dBASE      CPT
                                           PRO



CPT   Template;CA-Cricket Presents CPZ     Music text file;COMPOZ



      Advanced crack file (usually         Cardfile;Windows 3.x -
CRA                                  CRD
      text);                               YourWay


      Cross-reference;MS MASM -
CRF                                  CRK   Crack file (usually text);
      Zortech C++


                                           File Conversion
CRP   Encrypted database;dBASE IV CRS
                                           Resource;WordPerfect 5.1


      Terminal settings                    Compressed file archive
CRT                                  CRU
      information;Oracle                   created by CRUSH;
                                              Borland C++ 4.x
CSG    Graph;Statistica/w               CSM   precompiled header
                                              file;BCW.EXE

       PC Emcee Screen Image
CSP    file;Computer Support            CSS   Datafile;CSS - Stats+
       Corporation


                                              Adjusted EGA/VGA
CSS    Datasheet;Statistica/w           CSV
                                              palette;CompuShow


       Comma Separated Values
CSV                                     CTC   Control file;PC Installer
       text file format (ASCII);


       Character code translation             Control file;dBASE IV -
CTF                                     CTL
       file;Symphony                          Aldus Setup


       Ciphertext file;Pretty Good            Course TeXt file;some
CTX                                     CTX
       Privacy RSA System                     Microsoft online guides

                                              Windows resource (cursor
       C Utilities Form definition;TCU        image file);Resource
CUF                                    CUR
       Turbo C Utilities                      Workshop - WRT - Watcom
                                              Resource Editor

       Graphics format (bitmapped
CUT                                     CV4   Color file;CodeView
       graphics);dr. Halo



CVP    Cover page;WinFax                CVS   Graphics;Canvas



       Backup file for CONVERTed
CVT                                     CVW   Color file;CodeView
       database file;dBASE IV


                                              C++ source code
CWEB   C Web;                           CXX
                                              file;Zortech C++


       Data file in special format or
DAT                                     DAT   Database file;Clarion
       ASCII;


       Сonfiguration ;dBASE IV -              Вatabase file;Paradox - 
DB                                      DB
       dBFast                                 XTreeGold - dbvista
                                           Temperature debug
DB    Multi Edit config;ME           DB$
                                           info;Clarion Modula-2



DB$   Temporary file;dBASE           DB2   Database;dBASE II



                                           Database file;Turbo Prolog -
DB3   Database;dBASE III             DBA
                                           DataEase


      Business data;Business               Debug info;Clarion Modula-
DBD                                  DBD
      Insight                              2


      Database file;dBASE III/IV -         Debugger script;DOS debug
DBF                                  DBG
      FoxPro - dBFast - DataBoss           - Watcom debuger


      Symbolic debugging
DBG                                  DBK   Database backup;dBASE IV
      information;MS C/C++



DBM   Datafile;DataEase              DBM   Menu template;DataBoss



                                           Data file used by Managing
DBO   Compiled program;dBASE IV DBS
                                           Your Money;


      Database in SQL Windows
DBS                                  DBS   Datafile;PRODAS
      format;


      Printer description file;MS          FoxBASE+ style
DBS                                  DBT
      Word - Works                         memo;FoxPro


      Memo file for database
DBT   w/same name;dBASE IV -         DBW   Windows file;DataBoss
      dBFast

                                           Document Content
DBX   DataBeam;GCGW                  DCA   Architecture text file;IBM
                                           DisplayWrite


                                           Delphi Control
DCF   Disk image file;               DCL
                                           Library;Borland Delphi
                                           OS/2 device code
DCM   DCM music module;AWAVE       DCP
                                           page;OS/2


      Bitmap graphics (CYMK
DCS                                DCS     Datafile;ACT! Activity Files
      format);QuarkXPress


      Dictionary: used by many             Spell checking
DCT   programs with program        DCT     dictionary;Harvard Graphics
      dependent format;Clarion             3.0 - Symphony

                                           Multi-page PCX graphics
      Delphi unit (compiled);Borland
DCU                                  DCX   (common fax format);Intel -
      Delphi
                                           SpectraFAX


      Macintosh file
DD                                 DDB     Bitmap graphics;
      archive;DISKDOUBLER


                                           Device Driver Profile
DDI   Disk image;DiskDupe          DDP
                                           file;OS/2


                                           Assembly header
DEB   DEBUG script;DOS Debug       DEF
                                           file;Geoworks


                                           Linker definition file;TLink -
DEF   Defaults - definitions;      DEF
                                           WLink...



DEM   Demonstration;               DEM     Digital Elevation Model;



                                           Vista DEM file;Meta.exe
DEM   Graphics file;VistaPro       DEM
                                           VP3


      Ascii text parameter
DES                                DEV     Device driver;
      description;AWAVE


      Data Flow Diagram graphic            Outline font
DFD                                DFI
      file;Prosa                           description;Digifont


      Default program                      Data Flow Diagram model
DFL                                DFM
      settings;Signature                   file;Prosa
      Delphi form module;Borland
DFM                                 DFS    Delight Sound File;
      Delphi



DFV   Printing form (Word);MS Word DFX     Micrografx Effects DLL;



DGN   Graphics file;MicroStation    DGS    Diagnostics;



      Dependency information for           Dr. Halo PIC Format
DH                                  DHP
      .ph;Geoworks                         graphics file;Dr. Halo II - III


                                           Diagraph graphics
DHT   Datafile;Gauss                DIA    file;Computer Support
                                           Corporation

      "Device Independent Bitmap;
                                           Dictionary (e.g. from
DIB   rarely used Windows 3.0       DIC
                                           WinWord);
      bitmap";Win - OS/2


      Borland patch data                   Data Interchange
DIF                                 DIF
      file;Borland patch                   Format;Visicalc


      OS/2 V2.2 Display Information        Output from Diff command -
DIF                                 DIF
      File;OS/2                            script for Patch command;


                                           Sound Designer 1 audio
DIG   Digilink;AWAVE                DIG
                                           file;AWAVE


                                           Watcom debug info
DIP   Graphics;                     DIP    processor;WatcomDebugge
                                           r


      Dialing directory file;Procomm       Directory file;VAX - CPS
DIR                                  DIR
      Plus                                 Backup



DIR   Movie;MacroMind Director 4.x DIS     Distribution file;VAX Mail



                                           Description file (Description
DIS   Thesaurus;CorelDraw           DIZ
                                           In Zip);
                                           Animation format (Italian
DKB   Raytraced graphics;DKBTrace DL
                                           origin);Display - DL Viewer


                                           Dialog resource script
DLD   -----;Lotus 1-2-3            DLG
                                           file;MS Windows SDK



DLG   Dialog resources;DN          DLG     Digital Line Graph;



      Windows SDK dialog editor            Dynamic Link
DLG                                DLL
      data file;                           Library;Windows 3.x - OS/2


      Export/import
DLL                                DLS     Setup;Norton Disklock
      filter;CorelDRAW


      Music format (Delusion Digital
DMF                                  DMO   Demo;Derive
      Music File);Delusion


      Dump file (eg. screen or             Amiga file
DMP                                DMS
      memory);                             archive;DISKMASHER


                                           WinWord native file;MS
DOC   ASCII doc file;              DOC
                                           Word


      Screen file;Laughing Dog             Dependency information for
DOG                                DOH
      Screen Maker                         .poh;Geoworks


      External command file;1st            Network driver (eg.
DOS                                DOS
      Reader                               pkt_dis.dos);


      OS/2 V3 SVGA PMI-                    Something for MS-DOS
DOS                                DOS
      File;Svga.exe                        (e.g. msdos.dos);Win95


      Text file containing DOS             Line-type definition
DOS                                DOT
      specific info;                       file;CorelDRAW


      MS Word document
DOT                                DOX     Text file;MultiMate 4.0
      template;MS Word
      Description Out of
DOZ                                  DP    Calendar file;Daily Planner
      Zip;VENDINFO


                                           Default project- and state-
DP    Data file;DataPhile            DPR   related information;Borland
                                           C++ - Delphi - C


      Digital Moving Picture
DPX                                  DRP   Web3D File;Web3D
      Exchange;


      Display
DRS   Resource;WordPerfect for       DRV   Driver;
      Win


      Designer vector graphics             Vector graphics;Micrografx
DRW                                  DS4
      file;Designer - MicroGraphix         Designer 4.x



DSC   Description file;              DSC   Discard file;Oracle



                                           Delusion Digital Sound
DSD   Database;DataShaper            DSF
                                           File;Delusion


      Desktop configuration;BP -           Disk Drivers;Novell
DSK                                  DSK
      DN - BC++ - TP                       NetWare


                                           Design;Object System
DSM   Digital Sound Module;DSI       DSN
                                           Designer


                                           Dynamic Studio
DSP   Display parameters;Signature DSP     Professional
                                           Module;Dynamic Studio


      Graphics display driver;Dr.
DSP                                  DSP   Norton viewer DLL;Win
      Halo


      Driver Resource;WordPerfect
DSR                               DSS      Screensaver file;DCC
      for Win


                                           WAIN (Scanner spec) data
DSS   Sound;Digital Soup             DST
                                           source DLL;Win
      Borland C++ 4.x desktop               Data fork of a Macintosh
DSW                                   DT_
      layout file;BCW.EXE                   file;Mac-ette


      Data file;Turbo Pascal - PC-
DTA                                   DTF   Database file;PFS - Q&A
      File - Stata


      DigiTrekker music                     Document;Timeworks
DTM                                   DTP
      module;AWAVE                          Publisher3


      Page Magic 2.0
DTP                                   DTP   Publication;Publish-It!
      publication;Page Magic 2.0


                                            DeVice Independent
DVC   Data;Lotus 1-2-3                DVI
                                            document;TeX


                                            Device parameter
DVP   DESQView run-file;DESQView DVP
                                            file;AutoCAD


      Drawing;DesignCAD for                 Coryphaeus Software
DW2                                   DWB
      windows                               Designers Workbench;CSD


                                            DiamondWare Digitized
DWC   Archive;DWC                     DWD
                                            file;AWAVE


                                            Text file;DEC WPS/DX
DWG   Drawing;AutoCAD - Drafix        DX
                                            format - DEC WPS Plus


      Drawing Interchange File
DXF   Format vector graphics          DXN   Fax;Fujitsu dexNET
      (AutoCAD);AutoCAD


DYN   Data;Lotus 1-2-3



                                            Error-checking object
EAS   Extended file attributes;OS/2   EBJ
                                            file;Geoworks


      Error checking preprosessed
EC                                    ED5   EDMICS;GCGW
      Goc source code;Geoworks
      Ensoniq ASR disk                      Ensoniq EPS disk
EDA                                   EDE
      image;AWAVE                           image;AWAVE


      Ensoniq KT disk
EDK                                   EDL   EDL;Premiere
      image;AWAVE


      Ensoniq sq1,2/ks32 disk               Ensoniq SQ80 disk
EDQ                                   EDS
      image;AWAVE                           image;AWAVE


      Default settings;VAX Edt              Ensoniq TS disk
EDT                                   EDT
      editor                                image;AWAVE


                                            Ensoniq VFX-SD disk
EDT   External editors definitions;DN EDV
                                            image;AWAVE


      Button bar for Equation
EEB                                   EFA   Ensoniq ASR file;AWAVE
      Editor;WordPerfect for Win


                                            Ensoniq EPS instrument
EFE   Ensoniq EPS file;AWAVE          EFE
                                            file;AWAVE


                                            Ensoniq SQ1/SQ2/KS32
EFK   Ensoniq KT file;AWAVE           EFQ
                                            file;AWAVE



EFS   Ensoniq SQ80 file;AWAVE         EFT   Ensoniq TS file;AWAVE



      High resolution screen                Ensoniq VFX-SD
EFT                                   EFV
      font;ChiWriter                        file;AWAVE


                                            EGA display font;Ventura
EFX   Fax;Everex EFax                 EGA
                                            Publisher


      Internal data files;Borland's         ELISP source code
EKA                                   EL
      Eureka                                file;Emacs lisp


      Compiled ELISP code;Emacs
ELC                             ELI         Archive;ELI
      lisp
                                             ABT Extended
ELT    Event list text file;Prosa      EMD
                                             MoDule;AWAVE


       ABT Extended                          Microsoft Enhanced
EMD                                    EMF
       MoDule;AWAVE                          Metafile;


                                             Encoded file -
       Terminal emulation
EMU                                    ENC   UUENCODEd file;Lotus 1-2-
       data;BITCOM
                                             3 - uuexe515.exe


                                             Arrow-head definition
ENC    Music;Encore                    END
                                             file;CorelDRAW



ENFF   Extended Neutral File Format; ENG     Dictionary engine;Sprint



                                             Graphics file
ENG    English documentation;          ENG
                                             (charting);EnerGraphics



ENV    Envelope or Environments;       ENV   Enveloper macro;WOPR



       Environment file;WordPerfect          Publication;Express
ENV                                 EPD
       for Win                               Publisher


                                             Encapsulated PostScript
EPI    Document;Express Publisher      EPI
                                             graphic file;

       Encapsulated PostScript
       (Graphics format);CorelDraw -         Equation filE;WordPerfect
EPS                                   EQN
       PhotoStyler - PMView - Adobe          for Win
       Illustrator - Ventua Publisher

       Entity Relationship Diagram           Entity Relationship Diagram
ERD                                    ERM
       graphic file;Prosa                    model file;Prosa



ERR    Compiler/linker error report;   ESH   Extended Shell batch file;



                                             Structure-enhanced text for
ETH    Document;Ethnograph 3           ETX
                                             some ascii text browsers;
      Ensoniq EPS family CD
EUI                                   EVT    Events descriptions;
      image;AWAVE


                                             Document;Express
EVY   Document;WordPerfect Envoy EWD
                                             Publisher for Windows


                                             Exclude file for Optimize (do
      Device driveR;Harvard
EX3                                   EXC    not process)
      Graphics 3.0
                                             (QEMM);QEMM


      REXX source code                       Directly executable
EXC                                   EXE
      file;VM/CMS                            program;DOS


      MSDOS executable, system-
                                             Protected mode EXE by
EXM   manager compliant (HP           EXP
                                             PharLap Software;PharLap
      calculator);HP calculator


                                             Intermediate file by
EXT   Extensions descriptions file;   EXX
                                             MsgPut;IBM LinkWay



EZF   Fax;Calculus EZ-Fax



                                             Fortran language source
F     Archive;FREEZE                  F
                                             file;NDP Fortran


      DOS screen text font - height
Fnn                                   F01    Fax;perfectfax
      nn pixels;fntcol13.zip


      Farandole Linear                       Farandole Blocked Linear
F2R                                   F3R
      Module;Farandole                       Module;Farandole


      FORTRAN 77 source code
F77                                   F96    Fax;Frecom FAX96
      file;



FAC   see FACE;                       FACE   Usenix FACE graphics file;


                                             Music format (Farandole
      Frequently Asked Questions
FAQ                                   FAR    Composer
      text file;
                                             Module);Farandole
                                                Fax (raster graphics in
FAS   Macsyma compiled program;         FAX     CCITT format);most Fax
                                                programs

                                                Spell checking
FBM   Fuzzy Bitmap;                     FC      dictionary;Harvard Graphics
                                                2.0


      Binary file patch file (forward
FCM                                     FD      Declaration file;MS Fortran
      compression);jlpak10.zip


      Field offsets for                         Front Door' resource
FD                                      FD
      compiler;DataFlex                         files;FD


                                                Button bar for Figure
FDW   Form;F3 Design and Mapping FEB
                                                Editor;WordPerfect for Win


      Fatal Error
FEI                                     FF      Intelligont FIAS format;
      Infotable;Geoworks


      Outline font description;Agfa
FF                                      FFF     Fax;defFax
      Compugraphics


                                                File Format for the
FFI   Atech FastFont (AllType);         FFIVW   Interchange of Virtual
                                                Worlds;


      DCA/FFT Final Form Text text              Dca/FFT Final Form Text
FFT                                FFT
      file;DisplayWrite                         text file (DisplayWrite);


      Vector graphics;Aldus                     Vector graphics;Aldus
FH3                                     FH4
      FreeHand 3.x                              FreeHand 3.x



FI    Interface file;MS Fortran         FIF     Fractal Image Format file;



      File template;Application
FIL                                     FIL     Filelist;
      Generator

                                                Mirror. FIL is the name
      Files list object file;dBASE              given to the saved FAT by
FIL                                     FIL
      Application Generator                     the mirror program included
                                                in some versions of DOS
                                              Print-formatted text
FIL    Overlay;WordPerfect              FIN   file;Perfect Writer - Scribble -
                                              MINCE


       Aldus PhotoStyler graphics
FIO                                     FIO   Image PALS viewer DLL;
       filter;



FIT    File Index Table;WindowsNT       FIT   see FITS;



       Flexable Image Transport
FITS                                    FIX   Patch file;
       System;



FKY    Macro file;FoxPro                FLB   Format library;Papyrus


       Animation format FLIC
FLC    >320x200;AAPlay - Autodesk FLD         Folder;Charisma
       AniPro


       Animation format FLIC
FLI                                     FLI   TeX font library;EmTeX
       320x200;Autodesk Animator


                                              Data/file conversion filter (or
FLM    Film Roll;AutoCAD/AutoShade FLT
                                              overlay);Alsud - MS Word


       Filter file;Micrografx Picture
FLT                                     FLT   MultiGen Flight;
       Publisher


       Support file - graphics
FLT                                     FLX   Animation format;
       filter;Asymetrix ToolBook



FLX    Compiled binary;DataFlex         FM    Spreadsheet;FileMaker Pro



       Spreadsheet;Lotus 1-2-3                Device driver;Harvard
FM1                                     FM3
       release 2.x                            Graphics 3.0


       Spreadsheet;Lotus 1-2-3                File Manager Button
FM3                                     FMB
       release 3.x                            bar;WordPerfect for Win
                                           Makefile;Fortran
FMF   Font or icon file;IBM LinkWay FMK
                                           PowerStation


      Compiled format file (dBASE          Format file;dBASE IV -
FMO                                 FMT
      IV);dBASE IV                         FoxPro - Clipper 5 - dBFast



FMT   Gate3 format file;            FMT    Style sheet;Sprint



                                           Font file;Harvard Graphics
FMV   Full Motion Video file;       FN3
                                           3.0


                                           FunkTracker music
      Files searching
FND                                 FNK    module;AWAVE,
      properties;Win95
                                           FunkTracker


FNT   Font file;many                FNX    Inactive font;Exact



FO1   Font file;Borland Turbo C     FO2    Font file;Borland Turbo C



      Fontographer Database                Folder of saved
FOG                                 FOL
      File;Fontographer3.5                 messages;1st Reader


                                           Terminate
FON   Log of all calls;Procomm Plus FON    phonebook;Terminate -
                                           Terminator - Telix


      Windows bitmapped font
FON                                 FONT   Font data;unix
      file;Win


      Freedom of the Press graphic
FOP                                FOR     Form;WindowBase
      file;


      Fortran language source
                                           Installed Truetype
FOR   file;MS Fortran - Watcom      FOT
                                           font;Windows Font Installer
      Fortran


      Foxbase executable
FOX                                 FP     Configuration file;FoxPro
      (precompiled .prg);FoxBase
                                           TMT Pascal compiled
FPC   Catalog;FoxPro                FPD
                                           unit;TMT Pascal


                                           Floorplan
      Foxpro memo field
FPT                                 FPW    drawing;FloorPLAN plus for
      tables;FoxPro
                                           Windows


                                           Renamed dBASE III+ form
FR?   Packed mail;FTN software      FR3
                                           file;dBASE IV


      FontMonger Database                  Uncompiled report
FRF                                 FRG
      file;FontMonger                      file;dBASE IV;



FRL   GP-Forth library;GP-Forth;    FRM    Registration or other form;;



      Report file;dBASE IV - Clipper       Visual Basic Form;Visual
FRM                                  FRM
      5 - dBFast;                          Basic;


      Compiled report file;dBASE           Form;PerForm PRO Plus -
FRO                                 FRP
      IV;                                  FormFlow;


      Screen Font
                                           Additional (FPT) report
FRS   Resource;WordPerfect for      FRT
                                           description file;FoxPro;
      Win;


      GP-Forth source file;GP-             Main (DBF) report
FRT                                 FRX
      Forth;                               description file;FoxPro;


      Visual Basic binary program
FRX                                 FSL    Form;Paradox for Windows;
      file;Visual Basic;


      Farandole Composer
FSM                                 FST    Linkable program;dBFast;
      WaveSample;Farandole;



FSX   Data;Lotus 1-2-3;             FTM    Font file;Micrografx



      Configuration;FTP Software
FTP                                 FW     Database;FrameWork
      PC/TCP
FW2    Database;Framework II         FW3     Database;Framework III



FWEB   Fortran WEB;                  FX      On-line guide;FastLynx



                                             Foxpro executable
FXD    Phonebook;FAXit               FXP
                                             (precompiled .prg);FoxPro


       FAX Transmit Format
FXS
       graphics file;WinFax


                                             GoldED for DOS compiled
G      Data chart;APPLAUSE           G16
                                             config;GOLDED.EXE


       Raw graphics file (one byte
G8     per pixel) plane three;PicLab - GAM   Fax;GammaFax
       Cubicomb Picturemaker


       Global definitions;VAXTPU             Global module in Basic
GBL                                  GBL
       editor                                programs;


       Lisp source code;Golden               Lisp source code;Golden
GC1                                  GC3
       Common Lisp 1.1                       Common Lisp 1.3



GCA    IBM GOCA;GCGW                 GCD     Graphics;



GDF    Dictionary file;GEOS          GDS     McDonnell-Douglas Things;



                                             EDITOR's native file
GE     GEcho config file;GEcho       GED
                                             format;Arts & Letters


       GoldED for DOS compiled               Graphics editor
GED                                  GED
       config file;GOLDED.EXE                file;EnerGraphics


       Vector graphics file;GEM -            Compiled template;dBASE
GEM                                  GEN
       Ventura Publisher                     Application Generator
      Generated text;Ventura
GEN                                GEO    Geode;Geoworks
      Publisher


      GEOS specific file                  GoldED for OS/2 compiled
GEO                                GEO
      (application);GEOS                  config file;GED2.EXE


                                          Compressed GIF image
GEX   GEcho config file;GEcho      GFB    created by
                                          GIFBLAST;gifblast.exe


GFO   SGI Radiosity;               GFT    Font;NeoPaint



                                          Instant Artist graphics
GFT   GEM-translator font file;    GFX
                                          Files;Instant Artist


      PCBoard @X-coded colorful
GFX                                GIB    Chart;Graph-in-the-Box
      text;GFX2COM - GFX2EXE

                                          Compuserves' Graphics
                                          Interchange Format
GID   Help index;windows 95 help   GIF
                                          (bitmapped graphics);QPeg -
                                          Display - CompuShow

      Presentation;Graph-in-the-Box       Ensoniq Disk Image (VFX,
GIW                                 GKH
      for Windows                         SD, EPS, ASR, TS);Ensoniq


                                          Animation;GRASP
GKS   Graphics Kernel System;      GL     GRAphical System for
                                          Presentation


      Animation format;grasprt.exe,       Global module in Basic
GL                                  GLB
      PV                                  programs;


                                          Global module in Basic
GLM   Datafile;Glim                GLO
                                          programs;



GLS   Datafile;Across              GLY    Winword Glossary;MS Word



GMF   CGM graphics file;APPLAUSE GMP      Geomorph tile map;SPX
        Goc source code
GOC                                   GOE     GOES graphic file;
        file;Geoworks


                                              Geode parameter
GOH     Goc header file;Geoworks      GP
                                              file;Geoworks Glue



GPH     Graph;Lotus 1-2-3/G           GPK     Omnigo program package;



GR2     Screen driver;Windows 3.x     GRA     Datafile;SigmaPlot



                                              Graphical System for
GrADS   Metafile;                     GRASP
                                              Presentation;


                                              Drivers for GRX (graphics
        MS-DOS Shell Monitor file;MS-
GRB                                   GRD     library);GRX (c) Free Soft.
        DOS 5
                                              Found.


        Graph file ;Graph Plus -
GRF                                   GRIB    Gridded Binary;
        Charisma


        Drivers for GRX (graphics
                                              Group file ;Windows 3.x -
GRN     library);GRX (c) Free Soft.   GRP
                                              Papyrus
        Found.


                                              Graphics format (RAW
GRP     Pictures group ;PixBase       GRY
                                              GREYz);


                                              Vector
GS1     Presentation;GraphShow        GSD
                                              graphics;Professional Draw


        Raw GSM 6.10 audio
GSM                                   GSW     Worksheet;GraphShow
        stream;AWAVE



GUP     -----;PopMail                 GV      GrandView outline file;



                                              Archive;GNU zip -
GXL     Graphics library;Genus        GZ
                                              WinZipNT
      Header file (usually C              C-- language header;Sphinx
H                                   H--
      language);Watcom C/C++              C--


      On-line help file;Flambeaux         Pertext
H!                                  H!
      Help! Display Engine                database;HELP.EXE



H++   Header file;C++               HA    Archive;HA



      Data file;Hyper Access Lite         Disk Drivers NPA;Novell
HAL                                 HAM
      OS/2                                NetWare


                                          MathCAD
HAP   Archive;HAP3                  HBK
                                          handbook;MathCAD


                                          Help file;Help Development
HC    Header file;                  HDF
                                          Kit


      Hierarchical Data File
                                          Alternate download file
HDF   graphics file;SDSC Image      HDL
                                          listing;Procomm Plus
      Tools

                                          Message header
HDR   Datafile;Egret                HDR   text;Procomm Plus - 1st
                                          Reader


HDR   PC-File+ Database header;     HDR   SPOT image file;



                                          Vector graphics;Harvard
HDS   Hierarchical Data System;     HDW
                                          Draw


      Help index;AutoCAD - Zortech        Novell Help Librarian Data
HDX                                HEP
      C++                                 File;Novell NetWare



HEX   Hex dump;                     HFI   HP Font Info file;GEM



      Highlight groups                    HP Graphics Language
HGL                                 HGL
      definitions;DN                      graphics file;
                                               Precompiled header
HH    C++ header file;                 HHH
                                               file;Power C


      Help information for remote
HHP                                    HI      Game high scores table;
      users ;Procomm Plus


                                               History of
HIN   Molecule;HyperChem               HIS     executing/viewing/editing;D
                                               N


HLB   Help library;VAX                 HLP     Help file;



                                               Multi Edit packed help
HLX   Multi Edit help file;MultiEdit 5.0 HLZ
                                               file;MultiEdit


                                               Alternate Mail Read option
HMI   Music format (MIDI);             HMM
                                               menu;Procomm Plus


                                               CNC program files
HMP   Music format (MIDI);             HNC
                                               Heidenhain (?) dialog;


                                               Printout file for HP
HOF   Hall Of Fame (game scores);      HP
                                               printers/plotters (HP/GL);


      ASCII text HP Roman8                     HP LaserJet
HP8                               HPF
      character set;NewWave Write              fonts;PageMaker

                                               Plotter file vector graphics
                                               (Hewlett-Packard Graphics
HPG   see HPGL;                        HPGL
                                               Language);AutoCad -
                                               Harvard Graphics
                                               Help project;MS Help
HPI   Font information file;GEM        HPJ     Compiler for Windows - HC.
                                               EXE

                                               Alternate Main menu for
HPK   Archive;HPACK                    HPM     privileged users;Procomm
                                               Plus


                                               High Performance
HPM   EMM text;HP NewWave              HPM
                                               Map;Quaestor 1.x
      C++ header file;Zortech C++ -         Hewlett-Packard Printer
HPP                                 HPPCL
      Watcom C/C++                          Control Language;


                                            Graphics file (Hitachi Raster
HQX   Archive (ASCII Mac);BINHEX HRF
                                            Format);


      Alternate Main menu for
HRM   limited/normal users;Procomm HRZ      Graphics format;SSTV
      Plus


                                            2-op FM music;HSC tracker
HS2   Monochrome image;Postering HSC
                                            - hscplay.exe


      Handmade Software Inc.
HSI   graphics file almost           HST    History file;Procomm Plus
      JPEG;Image Alchemy
                                            Hyper Text Macro
                                            Language
HTM   see HTML;                      HTML
                                            (WWW);NetScape - Mosaic
                                            - many


HTX   Hypertext file;                HWD    Presentation;Hollywood


      Alternate Protocol Selection
HXM   menu for all users;Procomm     HXX    C++ header file;
      Plus

                                            Hyphenation
      Hyphenation
HY1                                  HY2    algorithms;Ventura
      algorithms;Ventura Publisher
                                            Publisher

                                            Hyphenation
HYC   Data;WordPerfect               HYD    dictionary;WordPerfect for
                                            Win


HYP   Archive;HYPER



      Preprocessor output                   Bitmap graphics (IBM
I                                    IAX
      file;Borland C Preprocessor           Image Access eXecutive);


                                            Archive (Internal IBM
IBG   PDS graphic file;              IBM
                                            only);ARCHDOS
      Bitmap graphics (Image
ICA                                   ICB    Bitmap graphics;
      Object Content Architecture);


                                             Archive;Cracked LHA (old
ICC   ICC configuration;              ICE
                                             LHA)



ICM   ICC configuration;              ICN    ICON source code file;



ICO   Icon file;ICONEDIT.EXE          ID     Disk identification file;



IDB   IDA database;IDA                IDC    IDA C language source;IDA



      Borland C++ 4.x IDE
IDE                                   IDF    MIDI instrument description;
      project;BCW.EXE


      IDA imported names
IDS                                   IDW    Vector graphics;IntelliDraw
      format;IDA



IDX   Index;many - FoxPro             IFD    Form;JetForm Design


      Interchange Format File
                                             Sun TAAC Image File
IFF   (IFF);EA Software - Convert     IFF
                                             Format;SDSC Image Tool
      (C) Villena - Amiga


                                             Fractal image compressed
IFP   Script;KnowledgeMan             IFS
                                             file;Yuvpak


                                             Initial Graphics Exchange
IFS   Installable file system;OS/2    IGES
                                             Specification;



IGF   Inset Systems;GCGW              IHP    Watcom help file;whelp.exe



                                             hDC Designer Icon Lin Dll
IHS   Inbound History;Bink/+          IL
                                             format;
                                             Outline of program's
ILB    Data;Scream Tracker            ILK    format;MS ILink incremental
                                             linker


                                             Mirage vector graphics;EGO
IM8    Sun raster graphics file;      IMA
                                             - Chart - Autumn



IMG    ADEX graphic file;             IMG    Disk Image;NC 5.0



       GEM bitmapped graphics
IMG                                   IMG    Vivid IMG file;
       file;Ventura



IMP    Spreadsheet;Lotus Improv       IMQ    Image presentation;ImageQ



                                             Input device driver;Harvard
IN$    Installation file;HP NewWave   IN3
                                             Graphics 3.0


                                             Include file;several
INB    Test script;Vermont HighTest INC
                                             programming languages



IND    Data Index;dBASE IV            INF    Information text file (ASCII);



                                             OS/2 hypertext help system
INF    Install script;                INF
                                             file;VIEW.EXE


       Type 1 LaserJet font
                                             GNU info reader (output
INF    information file;soft font     INFO
                                             from texinfo);unix
       installers


                                             Intergraph Raster File
INFO   Icon Data (Amiga);             INGR
                                             Format;


                                             Pantone reference fills
INI    Initialization file;           INK
                                             file;CorelDRAW


                                             Ensoniq Instrument
INS    Data;WordPerfect               INS
                                             File;Ensoniq
                                                  Instrument music file
INS       Installation script;1st Reader   INS
                                                  (Adlib);


                                                  Program saved in Internal
INT       Borland Interface Units;         INT    (semi-compiled)
                                                  format;Signature


          Source of Borland interface
INT                                        INX    Index;Foxbase
          module;


                                                  3d graphics database in
IO        Archive;CPIO                     IOB
                                                  TDDD format;


          Organizational chart;Instant            4DOS descript.ion file (file
IOC                                        ION
          ORGcharting!                            descriptions);4DOS


          Immortal Player file;Immortal           Pantone Spot reference
IP                                         IPL
          Player                                  palette file;CorelDRAW


          Resource (WordPerfect)                  Graphicon-2000 Interactive
IRS                                        IRTR
          standard.irs;WordPerfect                Real-Time PHIGS;


          Spelling Checker
ISD                                        ISH    Archive;ISH
          dictionary;RapidFile


                                                  Digitrakker Instrument
ISO       ISO-9660 table;                  IST
                                                  File;AWAVE


          Impulse Tracker music
IT                                         IT     Settings;intalk
          file;Impulse Tracker


          Interface file;JPI TopSpeed
ITF                                        IV     SGI Inventor;
          Pascal


                                                  Presentation
IV-VRML   Inventor VRML Format;            IW     flowchart;IconAuthor - HSC
                                                  InterActive


IWA       Text file;IBM Writing Assistant IWP     Text file;Wang
IZT   Izl binary token file;IZL



      Jam messagebase;FTN
JAM                                    JAR    Archive;JAR
      software



JAS   see JASC;                        JASC   Graphics format (JASC);



JAV   see JAVA;                        JAVA   Java source code file;



JBD   Datafile;SigmaScan               JBIG   Joint Bilevel Image Group;



      Project file;Project Scheduler
JBX                                    JET    Fax;Hybrid JetFax
      4


                                              JPEG File Interchange
JFF   see JFIF;                        JFIF
                                              Format;


                                              Music format (JMusic
JIF   see JFIF;                        JMS
                                              file);UltraForce


                                              Journal backup;VAX Edt
JOR   Journal file SQL;                JOU
                                              editor

                                              Graphics file JPEG Joint
                                              Photography Experts Group
JPC   Graphics;Japan PIC               JPEG
                                              format;QPeg - FullView -
                                              Display


JPG   see JPEG;                        JTF    Fax;Hayes JT Fax



      Graphics (TIFF file with JPEG
JTF                                 JW        Text document;JustWrite
      compression);



JWL   Library;JustWrite                JZZ    Spreadsheet;Jazz
                                           Description of macro
Knn   Database key file;Clarion      K3D
                                           language 3DS;3DS


                                           Precompiled .prg for
KAR   Music format (Karaoke);        KAR
                                           KARAT;Rus. FOX+ 2.0


      Keyboard script;Borland C++          Program source;Knowledge
KB                                   KB
      4.5                                  Pro


      Keyboard mapping;LogoScript          Keyboard
KBD                               KBM
      - Signature - Procomm Plus           mapping;Reflection 4.0


                                           Kodak Digital Camera
      Lisp source code;Kyoto
KCL                                  KDC   (graphics);PhotoEnhancer
      Common Lisp
                                           by PictureWorks


KEX   Kedit Macro File;Kedit         KEY   Datafile;Forecast Pro



                                           OS/2 archive .key-file (i.e.
KEY   Keyboard macros;               KEY
                                           OS2.KEY);OS/2


      Security file eg. Shareware
KEY                                  KFX   Kofax Group;GCGW
      Registration info;


      Power Chords drum kit
KIT                                  KML   Kedit Macro Library;
      file;Power Chord



KPP   Toolpad;SmartPad               KPS   Ibm KIPS bitmap graphics;



      Kurzweil 2000 sample                 Kurzweil 2000 sample
KR1                                  KR2
      file;AWAVE                           file;AWAVE


                                           Keyboard mapping;FTP
KRZ   Kurzweil K2000 File;Kurzweil   KYB
                                           Software PC/TCP


                                           Linker directive
L     LEX source code file;          L
                                           file;WATCOM wlink
L     LISP source code file;         LAB   Datafile;NCSS - SOLO



      Mailing labels ;Q+E for MS
LAB                                  LAN   Erdas image file;
      Excel


                                           Word chart
LAN   LAN Drivers;Novell NetWare     LAY
                                           layout;APPLAUSE


      Label generator data;dBASE           Label;dBASE IV - Clipper 5 -
LBG                                  LBL
      IV                                   dBFast


      Graphics format (Amiga);Pic-
LBM                                  LBM   Linear bitmap graphics;XLib
      view - Deluxe Paint



LBO   Compiled label;dBASE IV        LBR   Archive;CP/M LU



                                           Additional (FPT) label
LBR   Display driver;Lotus 1-2-3     LBT
                                           description file;FoxPro


      Main (DBF) label description         Linker Control File;Norton
LBX                                  LCF
      file;FoxPro                          Guides compiler



LCH   Chart;IBM Works for OS/2       LCK   Lockfile;Paradox



                                           Data (FTP Software
LCL   Data;FTP Software PC/TCP       LCL
                                           PC/TCP);



LCN   Lection;WordPerfect            LCS   Datafile;ACT! History Files



                                           Long Distance codes
LCW   Spreadsheet;Lucid 3-D          LD
                                           file;Telix


                                           Data filer database;IBM
LD1   Overlay file;dBASE             LDB
                                           Works for OS/2
                                           Data filer form;IBM Works
LDB   Overlay file;MS Access         LDF
                                           for OS/2


                                           DOS/4GW executable
      Library definition
LDF                                  LE    image;DOS/4GW PM 32X
      file;Geoworks Glue
                                           DOS Extender


LES   Lesson (check *.cbt);          LEV   Level file;NetHack 3.x



                                           LucasArts resource
LEX   Dictionary;MS Word - Lexicon LFD
                                           file;LucasArts games


                                           Logo procedure
LFT   Laser printer font;ChiWriter   LG
                                           definitions;LSRHS Logo


      Logo for header and                  Startup logo code;Windows
LGO                                  LGO
      footer;SuperFax                      3.x



LHA   Archive;LHA/LHARC              LHW   Amiga archive ;LHWARP


                                           License file used by some
      Library file;several
LIB                                  LIC   programs to put their license
      programming languages
                                           on disk;


                                           CA Clipper packed file;CA
LIF   Archive;                       LIF
                                           Clipper installer


      Logical Interchange Format
LIF                                  LIM   Archive;LIMIT
      data file;Hewlett-Packard



LIN   Line types;AutoCAD             LIS   Listing;VAX



LIT   Web3D File;Web3D               LJ    Text file for HP LJ II printer;



      LapLink III related file             Demo for Doom (computer
LL3                                  LMP
      (document);LapLink III               3d game);Doom - Doom2
LNG    Language definition file;     LNK   Linker response file;.RTLink



                                           Windows 95
LNK    Linker script;                LNK
                                           shortcut;Windows 95



LOD    Load file;                    LOG   Log file;



                                           Linker response file;MS
LPC    Printer driver;TEKO           LRF
                                           C/C++


                                           Language Resource
LRP    Report;IBM Works for OS/2     LRS
                                           File;WordPerfect for Win


       Lightscape Technologies             Lightscape Technologies
LSA                                  LSB
       ASCII;                              Binary;


       LISP language source
LSP                                  LSP   LISP source code file;Xlisp
       (autoLISP);


       Spreadsheet;Legato - IBM
LSS                                  LST   Filelist;FRQView
       Works for OS/2


                                           List file (archive index -
LST    Keyboard macro;1st Reader     LST
                                           compiler listfile);



LST    Listing (e.g. source code);   LST   Spool file;Oracle



LTM    Form (Lotus Forms);Lotus      LWD   Text document;LotusWorks



                                           Word processor;IBM Works
LWOB   Lightwave Object Format;      LWP
                                           for OS/2


                                           Difference file for
LYR    Lyrics (ASCII);               LZD
                                           binaries;LDiff 1.20
LZH   Archive;LHA/LHARC              LZS   Archive;LARC



LZW   Archive;LHWARP


                                           Source file for MatLab and
M     Macro module ;Brief            M     Mathematica;MatLab -
                                           Mathematica


      Backup of boot sector, FAT
M_U                                  M11   Text file ;MASS11
      and boot dir ;MazeGold



M3    MODULA 3 source code file;     M3D   3D animation macro;



      MPEG-3 standart Playlist
M3U                                  M4    M4 preprocessor file ;unix
      file;XING


      hDC products for MicroApp            Used by Mathematica for its
MA                                   MA
      executable files;MicroApp            notebooks ;Mathematica


                                           Bitmap graphics
MA3   Macro ;Harvard Graphics 3.0    MAC
                                           file;Macintosh MacPaint


                                           Woody Lynn's MAG
MAC   Macro file;Multi Edit          MAG   graphics format;MPS Magro
                                           Paint System


      Mahjongg Solitaire settings
MAH                                  MAI   Mail;VAX
      file;Mahjongg Solitaire 2.00



MAK   Makefile;                      MAK   Project file ;VB - VC ++



MAN   User guide (manual);           MAP   Color palette file;



      Format data ;Micrografx
MAP                                  MAP   Linker map file;
      Picture Publisher
                                             Map file (usually created by
MAP   Map ;Atlas MapMaker              MAP
                                             compilers);


                                             Assembly program ;VAX
MAP   Network map ;AccView             MAR
                                             Macro


      SmartMaster set ;Freelance
MAS                                    MAT   Data;MatLab
      Graphics


                                             Memo field values for
MAX   MAX source code file;            MB
                                             database ;Paradox


      Multiple index file                    Mailbox
MBK                                    MBX
      backup;dBASE IV                        data;Eudora/ZERBERUS



MCC   Configuration file ;Mathcad      MCD   MathCad file;MathCad



                                             MCI command script;Media
MCF   Font file;Mathcad                MCI
                                             Control Interface


      Multi Edit macro library;Multi
MCL                                    MCP   Application script;Capsule
      Edit



MCP   Printer driver ;Mathcad          MCW   Text file ;MacWrite II



MD    Archive;mdcd10.arc               MDA   Data;MS Access



      MS Access system                       Microsoft
MDA                                    MDB
      database;MS Access                     DataBase;Microsoft Access



MDL   Model;3D Design Plus             MDL   Spreadsheet ;CA-Compete!



                                             Microdrive file ;ZX Spectrum
MDM   Modem definition file ;TELIX     MDR
                                             emuulator by g.a.lunter
                                           Data table;MS ILink
MDS   Midi Session;Sound Imp.        MDT
                                           incremental linker


                                           Text description of music
MDX   Multiple index file;dBASE IV   MDZ   module;Cubic Player -
                                           Cross-View


      MultiEdit
ME                                   ME    Text file READ.ME;
      configuration;MultiEdit


      Macro Editor bottom overflow
MEB                                MEC     MECCA source;Maximus
      file ;WordPerfect Library


      Macro Editor delete                  Music
MED                                  MED
      save ;WordPerfect Library            format;MED/OctaMED


                                           Memory variable save
      Macro Editor
MEM                                  MEM   file;dBASE IV - FoxPro -
      macro ;WordPerfect Library
                                           Clipper


                                           Macro Editor print queue
MEM   Memos datafile;Clarion         MEQ
                                           file ;WordPerfect Library


      Macro Editor resident area
                                           Macro Editor work space
MER   (vakioalue);WordPerfect        MES
                                           file;WordPerfect Library
      Library


MES   Message;                       MET   Document ;Omnipage Pro



      Macro Editor top overflow            OS/2 graphics
MET                                  MET
      file ;WordPerfect Library            metafile;PICVIEW.EXE


                                           Macro Editor expound
MEU   Menu group ;DOS Shell          MEX
                                           file;WordPerfect Library


      MEX file (executable
MEX                                  MF    Metafont file;TeX
      command) ;Matlab



MFF   MIDI;Cakewalk, MTPro 4         MFM   Music format;DMP
                                           Materials and Geometry
MGF   Font ;Micrografx              MGF
                                           Format;


      Designer 4.1
MGX                                 MIB    Snmp MIB file;
      Drawing;Designer 4.1


      Standard MIDI file;music
MID                                 MIFF   Magick Image File Format;
      synthetizers


                                           Message in MIME format
MII   Datafile ;MicroStat-II        MIME
                                           (RFC822);


      Mission, used by many
MIS                                 MIX    Object file;Power C
      games;



MK    Makefile;                     MK     Makefile;



MK    Usually makefile;             MKE    Makefile ;MS Windows SDK



                                           Graphics format (Japan
MKG   Makefile;                     MKI
                                           MKI);


      Japanese graphics MAKIchan
MKI                              MKS       Data;TACT
      format ;MagView 0.5



ML3   Project ;Milestones 3.x       MLB    Macro library file;Symphony



      3DS Materials Libraries;3D           Text file ;MultiMate
MLI                                 MM
      Studio                               Advantage II


                                           Multimedia movie file, RIFF
MMF   Mail message file;MS Mail     MMM    RMMP format;MacroMind
                                           Director 3.x


                                           Output video format from
MMO   Memo writer file ;RapidFile   MMP
                                           Bravado board;
       Menu source ;AutoCAD Menu
MND                              MNG     Map;DeLorme Map'n'Go
       Compiler


       Additional (FPT) menu
MNT                                MNT   Menu memo ;FoxPro
       description file;FoxPro


                                         Menu ;AutoCAD Menu
       Advanced macro file ;HP
MNU                                MNU   Compiler - Norton
       NewWave
                                         Commander - Signature


       Microsoft Mouse menu (for         Compiled menu
MNU                                MNX
       DOS apps);                        file ;AutoCAD


       Main (DBF) menu description
MNX                                MNY   Account book ;MS Money
       file;FoxPro


                                         Device definition file ;PEN
MO?    Packed mail;FTN software    MOB
                                         Windows


       MODULA-2 source code
MOD                                MOD   Modula language source;
       file ;Clarion Modula-2


       Module -- used by Windows         Music format (Amiga
MOD    for DLL which implement DOS MOD   module);DMP - ST - MDP -
       support;Win                       VP


                                         Monitor
MOL    MOD4WIN PlayList;Mod4Win MON
                                         description ;ReadMail


       Animation format                  Movie file ;AutoCAD
MOV                                MOV
       (Mac);QuickTime                   AutoFlix


                                         MPEG audio stream, layer
MP2    Mpeg audio file;xing        MP3   3;AWAVE,
                                         CoolEdit(+PlugIn)


       MPEG audio stream, layer
MPA                                MPC   Calender file;MS Project
       1,2,3;AWAVE


       Animation format;MPEG
MPEG                               MPG   see MPEG;
       Player
       MediaRack Midi                       MathPlan
MPL                                   MPM
       Playlist;MediaRack                   macro ;WordPerfect Library


                                            Generated executable menu
MPP    Project file ;MS Project       MPR
                                            file;FoxPro


       Bitmap graphics (Multipage
MPT                                   MPV   View file ;MS Project
       TIFF);


       Compiled executable menu             Multiple Resolution Bitmap
MPX                                   MRB
       file;FoxPro                          graphics file;MS C/C++


       Windows User                         Macro Resource
MRK                                   MRS
       Benchmark;Win95                      file;WordPerfect for Win


       Microsoft antivirus
MS                                    MSC   Microsoft C makefile;
       report;MSAV


       Manchester Scene
MSDL                                  MSG   Message base (e.g. HMB);
       Description Language;



MSG    Message text file (ASCII);     MSG   ZVoice digitized voice file;



       Bitmap graphics file;Microsoft       Graphics format;Microsoft
MSP                                   MSP
       Paint                                Paint


       Manuscript text file;Perfect
MSS    Writer - Scribble - MINCE -    MST   Document;MS Test
       Jove


                                            Setup script file;MS
MST    Minispecification file;Prosa   MST
                                            Windows SDK



MSW    Text file;MS Word              MSX   CP/M archive;MSX



MTH    Math file ;Derive              MTL   Wavefront;
                                              Master Track Pro
MTM      Music format ;MultiTracker     MTS
                                              Files;MTPro 4



MTV      MTV Ray Tracer graphic file;   MTW   Datafile;Minitab



         Quattro pro for DOS Menu             Music format (MIDI in
MU                                      MUS
         definition file;Quattro Pro          Doom);


                                              Stop frame file ;AutoCAD
MUS      Sound file;MusicTime           MVF
                                              AutoFlix


         Movie command
MVI                                     MVW   Log file;Saber LAN
         file ;AutoCAD AutoFlix


                                              MWave DSP synths
MWF      Animation;ProMotion            MWS
                                              instrument;AWAVE


         PackRat 5.0 support
MXL                                     MXT   Data;MS C
         DLLs;PackRat 5.0


         Presentation;MM Make Your
MYP
         Point


         Name Space Modules;Novell            Naplps file
NAM                                     NAP
         NetWare                              (VideoShow);EnerGraphics


         North American Presentation
NAPLPS                                  NB    Text file;Nota Bene
         Layer Protocol Syntax;


                                              Instructions for NC
NC       Graphics;netcdf                NC    (Numerical Control)
                                              machine;CAMS

         Non-error checking                   CNC (Computer Numeric
NC       preprosessed Goc source        NCC   Control) control
         code;Geoworks                        file;CamView 3D

         Norton Change Directory
                                              Network database;Intellicom
NCD      support file;Norton            NDB
                                              - Compex
         Commander
                                               Index file;dBASE II - III - IV -
NDL      Nodelist file;                 NDX
                                               dBFast


         Raster graphics file;Atari            Network configuration/info
NEO                                     NET
         Neochrome                             file;


         Network Common Data
netCDF                                  NEW    New info;
         Format;


                                               WorldToolKit Neutral File
NFF      Haines Neutral File Format;    NFF
                                               Format;



NFO      Folioview database;            NFO    Help format;Nextpage Folio



                                               Hypertext Database;Norton
NFO      Info file;                     NG
                                               Guide


                                               NG compiler source
NGO      NG linker object file;NGML     NGS
                                               file;NGC


                                               National Imagery
NIL      NIL;Icon Hear-It               NITF
                                               Transmission Format;


                                               Netware loadable
NL       Norton Desktop Icon Library;   NLM
                                               module;Novell Netware


         National Language Support
NLS                                     NLX    Form;FormWorx 3.0
         file;MS-DOS


                                               Project schedule (Nokia
NOT      Notation;                      NP
                                               Planner) ;Nokia Planner


         Source for DGEN.EXE                   Norton screensaver
NPI      intepreter;dBASE Application   NSS    module;NC - NDW Screen
         Generator                             Saver


         Music module;Amiga Noise              Compound index
NST                                     NSX
         Tracker                               file;SuccessWare SIX 3.00
                                              Executable ASCII text file
NT    Startup files;Windows NT          NTR   (strip header and
                                              rename);netrun31.zip

      Executable ASCII text file
NTS   (strip header and                 NTS   Tutorial ;Norton
      rename);netsend1.zip


                                              Message for new users on
NTX   Database index file;Clipper 5     NUF
                                              their 1st call ;Procomm Plus


      Info text file (latest news)
NWS                                     NXT   Sound (NeXT format);
      (ASCII);



O     Object file ;unix - Atari - GCC   O$$   Outfile ;Sprint



O01   Typhoon vOice file;AWAVE          OAZ   Fax ;NetFax Manager



      Object cut/paste file;IBM               Microsoft Office
OB                                      OBD
      LinkWay                                 Binder;MSOffice


      Compiled machine language               Object code ;Intel
OBJ                                     OBJ
      code;                                   Recolatable Object Module


                                              Object browser data
OBJ   Wavefront Object;                 OBR
                                              file ;Borland C++


                                              Microsoft Office Binder
OBS   Script ;ObjectScript              OBT
                                              Template;MSOffice


                                              Microsoft Office Binder
OBV   Visual interface ;ObjectScript    OBZ
                                              Wizard;MSOffice


                                              Incoming fax transcribed to
OCF   Object Craft File;Object Craft    OCR
                                              text ;FAXGrapper


                                              New Custom Control's
OCT   Musical file;Pctalizer            OCX   format in VB 4.0;Visual
                                              Basic
                                            Open Document
OCX   OLE custom control;            ODIF
                                            Interchange Format;


                                            Type library source;Visual
ODL   Object Description Language; ODL
                                            C++


                                            Object File Format vector
OFD   Form definition;ObjectView     OFF
                                            graphics;


      Object File Format vector             PostScript font description
OFF                                  OFM
      graphics file;                        file;


      MS Office
OFN                                  OHS    Outbound History;Bink/+
      documents;MSOffice



OKT   Music (8 channels) ;Oktalyzer OKT     Music format ;Oktalyzer



OLB   Object library ;VAX            OLD    Backup file;



OLI   Text file ;Olivetti            OOM    Swap file;Shroom



                                            Delphi project
OPN   Active options ;Exact          OPT
                                            options;Borland Delphi


                                            "Options; name used by
OPT   Optimize support file;QEMM     OPT    many programs for
                                            configuration information";


      Organization chart ;Org Plus
OPW                                  OPX    Inactive options;Exact
      for Windows


                                            Calendar file ;Lotus
ORA   Parameter file;Oracle          ORG
                                            Organizer


                                            Outline font description ;Z-
ORG   Origin plot;Microcal Origin    OTL
                                            Soft Type Foundry
      Ventura Publisher's Type
OTL                                  OTX     Text file ;Olivetti Olitext Plus
      Foundry Outline Editor format;


                                             Overlay file (part of program
OUT   Output file;                     OV1
                                             to be loaded when needed);


      Overlay file (part of program to
OV2                                    OVD   Datafile;ObjectVision
      be loaded when needed);


      Overlay file (part of program to       Overlay file (part of program
OVL                                    OVR
      be loaded when needed);                to be loaded when needed);


      Database PROGRESS source
P                              P             PASCAL source code file;
      code;PROGRESS


                                             Rea-C-Time application
P     Picture file;APPLAUSE            P     parameter file;ReaGeniX
                                             code generator


      Splitted archive
P0?                                    P10   Tektronix Plot;GCGW
      UC2;SAS.EXE


      Music (16
                                             Patch file
P16   channels);ProTracker Studio      P22
                                             (Patch22);Patch22
      16


                                             SBStudio II Package or
PA1   Worktable;PageAhead              PAC
                                             Song;SBStudio II



PAC   STAD Image (graphics ?);         PAD   Keypad definition;Telemate



                                             Pallette file;Microsoft Draw -
PAK   Archive;Pak                      PAL
                                             Win. Paintbrush - many


      Printer-specific file (copy to
PAN                                    PAR   Parameter file;Fractint
      coreldrw.ink);CorelDRAW


      PARTS application ;Digitalk            Permanent output
PAR                                    PAR
      PARTS                                  file ;Windows 3.x
      Pascal language                     Gravis Ultrasound
PAS                                 PAT
      source;Borland Pascal               Patch;Convert (c) Villena


      Hatch patterns ;AutoCAD -
PAT                                 PAT   Vector fill files ;CorelDRAW
      Photostyler



PB    Fax ;FAXability Plus          PB    Phonebook;WinFax Pro



PB    Proboard Conf. files;Proboard PB    Setup file ;PixBase



      Document ;First Publisher for       Powerbasic BASIC source
PB1                                 PBA
      Windows                             code;Genus


                                          Powerbasic include
PBD   Phone book ;FaxNOW! - Faxit PBI
                                          file;Genus


      Profiler Binary Input;MS            Microsoft Network Phone
PBI                                 PBK
      Source Profiler                     book;MSN


                                          PBM Portable Bit Map
PBL   Powerbasic library;Genus      PBM   graphics format ;Jasc Media
                                          C.


                                          Profiler Binary Output ;MS
PBM   Planar bitmap graphics;XLib   PBO
                                          Source Profiler


      Profiler Binary Table;MS            Text file containing IBM PC
PBT                                 PC
      Source Profiler                     specific info;


      Custom palette ;Harvard             ASCII text IBM8 character
PC3                                 PC8
      Graphics 3.0                        set;NewWave Write


                                          Cutout picture vector
PCB   P-CAD database;P-CAD          PCC
                                          graphics ;PC Paintbrush


                                          Kodak Photo-CD Image
      Graphics format (Kodak Photo-
PCD                                 PCD   graphics file
      CD);
                                          (768x512);hpcdtoppm
      Profiler Command File;MS
PCF                                   PCH   Patch file;
      Source Profiler


                                            Multimedia authoring tool
      Precompiled header;MS
PCH                                   PCJ   graphics file ;IBM's
      C/C++
                                            Linkaway-Live

                                            HP-PCL graphics data
PCK   Pickfile ;Turbo Pascal          PCL   file ;HP Printer Control
                                            Language


      OKI MSM6376 synth chip
PCM                                   PCM   PCM;Authorware
      PCM;AWAVE


      Microsoft PowerPoint picture          Bitmap graphics
PCS   package;MS PowerPoint - MS PCT        file ;Macintosh b&w PICT1 -
      ClipArt Gallery                       color PICT2

                                            PC paintbrush bitmap
PCW   Text file;PC Write              PCX   format;QPeg - Display -
                                            ZSoft - PC Paintbrush


PDA   Bitmap graphics;                PDB   Data;TACT


                                            Adobe's Portable Document
      Packrat 5.0 data file;Packrat
PDB                                   PDF   Format;Adobe Acrobat
      5.0
                                            Reader


      Graphics file (ED-SCAN 24bit
PDF                                PDF      Package Definition File;
      format);


      PCAD Database Interchange
                                            Print device information
PDF   Format;Pdifin.exe -             PDF
                                            Netware;
      Pdifout.exe

                                            Project Description
PDG   Print Shop Deluxe data file;    PDL   Language file;Borland C++
                                            4.5


                                            Planetary Data System
PDS   Pds graphics;                   PDS
                                            Format;


      Pldasm source code file
PDS                                   PDV   Printer driver ;Paintbrush
      (hardware assembly);
                                         Program Editor bottom
PDW   Document ;Professional Draw PEB    overflow file ;WordPerfect
                                         Library


      Program Editor delete              Program Editor
PED                                PEM
      save;WordPerfect Library           macro;WordPerfect Library


      Program Editor print queue         Program Editor resident
PEQ                                PER
      file;WordPerfect Library           area ;WordPerfect Library


      Program Editor work space          Program Editor top overflow
PES                                PET
      file;WordPerfect Library           file ;WordPerfect Library


      Proboard EXecutable file
PEX                               PFA    PostScript Font File;
      (Executed from PB);Proboard


                                         Adobe Acrobat
      Type 3 font file (unhinted
PFA                                PFB   document;Adobe Acrobat
      PostScript font);
                                         Reader


      PostScript font;Adobe Type
PFB                                PFC   Text file ;First Choice
      Manager (ATM)


      Programmable function              Windows Type 1 font metric
PFK                                PFM
      keys ;XTreePro                     file;


      Database (PFS:FILE) - text
PFS                                PFT   Printer font ;ChiWriter
      file (PFS:Write);PFS


      Page cut/paste file;IBM            Printer Graphics File device
PG                                 PGI
      LinkWay                            driver;PGRAPH library


      HP Plotter vector graphics         Graphics format (Portable
PGL                                PGM
      format;                            GrayMap);JASC Media C.


                                         Support file ;Pretty Good
PGM   Program ;Signature           PGP
                                         Privacy RSA System


                                         Optimized .goh
PGS   Manual page;man4dos          PH
                                         file;Geoworks
PH    PERL header file;             PH     Phrase-table ;MS C/C++



PHD   PolyHedra Database;           PHM    Phone book;DN - Lync



      Phone list ;UltraFax -               Phone database;Metz
PHN                                 PHO
      QmodemPro                            Phone for Windows


                                           123 Vector graphics
PHR   Phrases ;LogoScript           PIC    format ;CShow - Alchemy -
                                           Paint (Pictor)

      Bitmap graphics
PIC   file ;Macintosh b&w PICT1 -   PIC    Lotus picture;
      color PICT2


      PIXAR picture file;SDSC
PIC                                 PICT   Macintosh Picture;
      Image Tool


      OS/2 graphics                        Program Information
PIF                                 PIF
      metafile;PICVIEW.EXE                 File;Windows 3.x


      Vector graphics GDF format
                                           Pascal Text Mode Image
PIF   file (IBM mainframe           PiM
                                           File;The Ultimate Draw
      computers);

      Compressed Mac file archive
                                           Alias image file;SDSC
PIT   created by                    PIX
                                           Image Tool
      PACKIT ;unpackit.zoo


PIX   Inset Pix;                    PJ     Project ;CA-SuperProject



      Additional (FPT) project             Main (DBF) project
PJT                                 PJX
      description file;FoxPro              description file;FoxPro


      PacKed bitmap font bitmap file
PK                                   PKA   Archive;PKARC
      (TeX DVI drivers);



PKG   Installer script ;Next        PKG    P-CAD database;P-CAD
      Fido message packet;FTN
PKT                                PL     Palette ;Harvard Graphics
      software



PL    PERL source code file;       PL     Prolog source code file;



      Property List font metric           Room plan ;3D Home
PL                                 PL1
      file ;TeX                           Architect


      Chart palette ;Harvard
PL3                                PLB    FoxPro library;FoxPro
      Graphics 3.0


                                          Add-in file (functions -
PLB   P-CAD library;P-CAD          PLC    macros - applications);Lotus
                                          1-2-3


PLC   P-CAD database;P-CAD         PLL    Prelinked library;CA Clipper



      DisorderTracker2 music              Spreadsheet;WordPerfect
PLM                                PLN
      module;AWAVE                        for Win


      HPGL plotter file vector
PLT                                PLT    Output file for ploter;
      graphics;AutoCAD


      P CAD: Output file editor for       Page Magic 2.0 paper
PLT                                 PLT
      PCPLOT or PCPRINT;P CAD             format;Page Magic 2.0



PLT   Palette;                     PLT    Table for .pll;CA Clipper



                                          Presentation
PLY   Data;PopMail                 PLY
                                          screen;Harvard Spotlight


                                          Bitmap
PLY   ZipPack;                     PM     graphics ;Presentation
                                          Manager


      PageMaker 3.0 data
PM3                                PM4    Document ;PageMaker 4
      file;PageMaker 3.0
      Aldus PageMaker 5.0
PM5                                 PMC   Graphics ;A4TECH Scanner
      publication;Aldus PageMaker


      OS/2 V3 SVGA PMI-
PMI                                 PMM   Program file ;Amaris BTX/2
      File;Svga.exe


      PhotoMorph                          Printer device
PMP                                 PN3
      Project;PhotoMorph                  driver ;Harvard Graphics 3.0


                                          PBM Portable aNy Map
PNG   Portable Network Graphics;    PNM
                                          graphics file;


                                          Pointlist segment;FTN
PNT   Macintosh painting;           PNT
                                          software


      QWK reader pointer                  Optimized .goh
PNT                                 POH
      file ;MarkMail 2.x                  file;Geoworks


      InnovMetric Software Polygon
POL                                POP    Messages index;PopMail
      Models Format;


                                          Raytraced graphics
      Pop-up menu object ;dBASE
POP                                 POV   image ;Persistence Of
      Application Generator
                                          Vision

      Power Chords
                                          Amiga
POW   instrument/song file;Power    PP
                                          archive;POWERPACKER
      Chords


      Button bar for Print                PostScript printer
PPB                                PPD
      Preview ;WordPerfect for Win        description file;


                                          Archive (using for many
PPJ   Premiere Project;Premiere     PPK
                                          distributives);PPK


      PolaroidPalettePlus ColorKey
                                          Graphics format (Portable
PPL   device driver ;Harvard       PPM
                                          PixelMap);JASC Media C.
      Graphics 3.0


      Preprocessor output;CA
PPO                                 PPP   Publication ;PagePlus
      Clipper 5.*
      Storyboard ;Personal                  General file
PPS                                   PPT
      Producer                              extension ;PowerPoint


                                            Packrat 4.0 data file;Packrat
PPT   Presentations;Microsoft         PR1
                                            4.0


      Packrat 4.x data file;Packrat         Presentation ;Aldus
PR2                                   PR2
      4.x                                   Persuasion 2.x


                                            PostScript printer
PR2   Printer driver;dBASE IV         PR3
                                            driver;dBASE IV


      Presentation;Aldus
PR3                                   PRD   Printer driver;
      Persuasion 3.x


      Presentation ;Freelance               Settings ;Programmer's
PRE                                   PRE
      Graphics                              WorkBench - MS C/C++


                                            CheckIt Pro v1.0 data
PRE   Stork graphic file;             PRF
                                            file;CheckIt Pro 1.0


      Pixel Run Format graphics
PRF                                   PRF   Printer driver ;dBASE IV
      file ;Improces - Fastgraph



PRF   Profiler output;                PRG   Program ;Atari


                                            Program source code (e.g.
      Program source;dBASE IV -
PRG                                   PRG   Clipper language);CA
      FoxPro - Clipper 5 - dBFast
                                            Clipper


                                            Borland C++ IDE project
PRI   Printer definitions ;LogoScript PRJ
                                            file;BC.EXE - BCW.EXE



PRM   Parameters;                     PRN   Printer driver ;Signature



      Text file ;Lotus 1-2-3 -
PRN                                   PRN   Usually printer output file;
      Symphony
PRO   Graphics profile file;DOS    PRO    Proboard conf. file;Proboard


      "Profile; used by many
PRO   programs to store            PRO    Prolog language source;
      configuration data";


                                          Project File (Interface
PRO   PROLOG source code file;     PROJ
                                          Builder);NeXT


      The Perfect Resume data
PRR                                PRS    Norton Viewer DLL file;
      file;Perfect Resume


      Presentation ;Harvard               Printer Resource eg.
PRS                                PRS
      Graphics Win                        fonts ;WordPerfect for Win



PRS   Procedure;dBASE IV           PRT    P-CAD component;P-CAD



PRT   Printer driver;Dr. Halo      PRX    Compiled program ;FoxPro



      Document in PostScript              Archive (Pretty Simple
PS                                 PSA
      format;adobe                        Archive);PSA.OUT (GNU)


      Periscope Debbuger Def              Photoshop bitmap
PSD                                PSD
      file;Periscope                      file;Photoshop


                                          Bitmap graphics;IBM printer
PSE   see PSEG;                    PSEG
                                          Page SEgment


                                          Music format (Protracker
      Outline PostScript printer
PSF                                PSM    Studio Module);Protracker -
      font ;ChiWriter
                                          MASI


      Symbol table of IDE ;Turbo          Presentation file for Sound
PSM                                PSN
      Pascal                              Script;Win


                                          Premiere
PSP   Procedure ;Prodea Synergy    PSQ
                                          Sequence;Premiere
                                            File w/ passwords for any
PST   Postbox file;BMail              PSW
                                            program/game;many


                                            Kodak Precition Color
PT    Game crack;Player Tools         PT
                                            Management System;


      Device driver ;Harvard
PT3                                   PT3   Template ;PageMaker 3
      Graphics 3.0


                                            Aldus PageMaker 5.0
PT4   Template;PageMaker 4            PT5   publication template;Aldus
                                            PageMaker


PTB   Script ;PubTech BatchWorks      PTL   Premiere Title;Premiere



PTM   Macro ;PubTech BatchWorks PTM         Music format;



      Page Magic 2.0                        OS/2 cursor image
PTM                                   PTR
      template;Page Magic 2.0               file;ICONEDIT.EXE


      QWK reader pointer
PTR                                   PTU   Performer Terrain Utilities;
      file ;QMail


                                            Public key ring file ;Pretty
PUB   Page template;MS Publisher      PUB
                                            Good Privacy RSA System


      Publication ;Ventura Publisher
PUB                                  PUT    Archive;PUT
      - 1st Publisher



PUT   Graphics format;WScan           PVD   Script ;Instalit



                                            Local Fidonet pointlist;FTN
PVL   Library ;Instalit               PVT
                                            software



PW    Text file ;Professional Write   PWL   Password List;
      Text document ;Professional
PWP                                   PX    Paradox 3.0 file;Paradox 3.0
      WritePlus


                                            Pixiar
PXP   3DS Process file;3D Studio      PXR
                                            Picio;AltamiraComposer


                                            Compiled PYTHON script
PY    PYTHON script file;             PYC
                                            file;



PZD   Default settings ;Pizazz Plus   PZI   Graphics format;PZP



PZO   Overlay file ;Pizazz Plus       PZP   Palette ;Pizazz Plus



PZS   Settings ;Pizazz Plus           PZT   Transfer file ;Pizazz Plus



PZX   Swap file ;Pizazz Plus



                                            Quick Access
Q0    Q0 graphic file;                QAG
                                            Group ;Norton Desktop


                                            Saved query (Query By
QAP   Application;Omnis Quartz        QBE   Example);dBASE IV -
                                            Quattro Pro


                                            Spreadsheet ;QuickBooks
QBO   Compiled query;dBASE IV         QBW
                                            for Windows


      Data file - segment n;Omnis           Backup of startup files
QDn                                   QDK
      Quartz                                created by Optimize ;QEMM


      Graphics file ;Steve                  Query file ;Q+E for MS
QDV                                   QEF
      Blackstock Giffer                     Excel



QFX   Fax ;QuickLink                  QLB   Quick library ;MS C/C++
       ATM Type 1 fonts
QLC                                  QLP     Printer driver ;QuickLink
       script;Adobe Type Manager


       Options or services file ;QMail       Generated query
QM4                                    QPR
       4.x Mail Door                         program ;FoxPro


       Print queue device                    Compiled executable QBE
QPR                                  QPX
       driver ;OS/2                          query file;FoxPro


       Equation Editor support               Graphics format (QRT ray
QRS                                  QRT
       file;WordPerfect for Win              tracing);


                                             QuickTime movie
QRY    Query;dBASE IV                QT
                                             (animation);



QTVR   QuickTime VR Movie;           QWK     QWK reader message file;



                                             Element
QXD    Document ;QuarkXPress         QXL
                                             library ;QuarkXPress


       RATFOR (FORTRAN                       Multi volume RAR
R                                    Rnn
       preprosessor) file;                   archive;RAR


                                             Raw graphics file (one byte
R2D    Reflex 2 datafile;Reflex 2    R8
                                             per pixel) plane one;PicLab


       PCL 4 bitmap font                     Remote Access conf.
R8P                                  RA
       file;Intellifont                      files;RA


       2-op FM music;Reality AdLib
RAD                                  RAD     Radience;
       Tracker


       Remote Access Language
RAL                                  RAM     Ramfile;RealAudio
       file;Remote Access


                                             Graphics format;SUN
RAR    Archive;RAR                   RAS
                                             Raster
RAT   Datafile (RATS);               RAW   HSI raw graphic file;



RAW   PCM Signed Raw Sound File; RAW       QRT graphic file;



RAY   Rayshade;                      RBF   Datafile ;Rbase


                                           Resource Compiler script
RC    Configuration file ;emacs      RC    file;MS C/C++ - Borland
                                           C++


      Resource Script;Resource             UUPC configuration
RC                                   RC
      Writer                               files;UUPC


      Windows resource compiler
                                           Netscape newsgroup file
RC    script;RC.EXE -Resource        RCG
                                           (netsc.rcg);
      WorkShop - OS/2


      Compiled UIC source                  Device-independent bitmap
RDF                                  RDI
      code;Geoworks UI Compiler            file (RIFF RDIB format);


                                           Archivation
RDX   Datafile ;Reflex               REC
                                           protocol;ARCSERVE



REC   Datafile ;EpiInfo              REC   Record file ;Sprint



      Windows Recorder Macro
REC                                  RED   Path info ;Clarion Modula-2
      File;WinRecorder


      REDuced nodelist file;T-Mail
RED                                  REF   Cross-reference;
      nodelist Compiler


      OLE Registration                     Registration information or
REG                                  REG
      file ;Windows 3.x                    key;



REM   Remarks;                       REM   Remarks definition;Sourcer
                                           Report;Report Designer -
REP   QWK reader reply file;         REP
                                           CodeReporter - DataBoss


      Report file used by many
REP                                  REQ   File request;FTN Software
      applications;


      Compiled resource;MS C/C++           DBASE resources ;dBASE
RES                              RES
      - Borland C++                        IV


      Windows compiled resource
RES                                  REV   Revision file;Geoworks
      package;Win


      PharLab executable file (old
REX                                  REX   Report definition;Oracle
      format);PharLab


      Rexx language source
REX                                  REZ   Resource file;
      file;Rexx


                                           DCA/RFT Revisable Format
RF    Sun raster graphics file;      RFT   Text file;IBM DisplayWrite
                                           4.0-5.1

                                           Symbol tables etc.
      SGI RGB image file
RGB                                  RGX   info;ReaGeniX code
      (RAW);SDSC Image Tool
                                           generator


      Resource header file;Borland         Windows resource file
RH                                   RH
      C++ 4.5                              header;RC.EXE


                                           Graphics (Renderman
RI    Data;Lotus 1-2-3               RIB   Interface Bytestream);3D
                                           Reality
                                           RIFF bitmap graphics
                                           (Resource Interchange File
RIC   Fax ;Ricoh                     RIF
                                           Format);Fractal Design
                                           Painter

      TeleGrafix Remote Imaging            Graphics (ColoRIX Image
RIP                                  RIX
      Protocol;Maximus 3.0                 File);ColoRIX



RL4   Bitmap graphics;               RL8   Bitmap graphics;
      Wavefront raster image                 Data hgw.rlb;Harvard
RLA                                   RLB
      file;SDSC Image Tool                   Graphics Win


      Graphics 1bit/pixel scanner            Norton Commander 5.0
RLC                                   RLD
      output;                                temp file;NC 5.0


      Utah Run Length Encoded
                                             REALIZER source code
RLE   rasterfile graphic file ;SDSC   RLZ
                                             file ;CA-Realizer
      Image Tool

      Windows alternate
                                             Make file;CA Clipper -
RMI   synthesized sound               RMK
                                             RMAKE
      format;RIFF RMID format


      XPL program for Nota Bene              Rendering Slide ;AutoCAD
RN                                    RND
      users;                                 AutoShade


                                             FM music Adlib Music
RNO   Runoff file ;VAX                ROL
                                             File ;Roland


      Read Only Memory image in              Data report file used by CP
ROM                                   RPB
      emulators, AONs, etc.;                 Backup;CP Backup



RPD   Database ;RapidFile             RPF    AutoCAD pattern;ACAD



                                             Report file used by many
RPL   Text document;Replica           RPT
                                             applications;


      Data file ;Amiga Resource -            Resource fork of a
RS                                    RS_
      Reassembler                            Macintosh file ;Mac-ette


                                             Resource Library used by
RSC   Resource file;ViewMax - many RSL       PC Tools for Windows;PC
                                             Tools - Win

                                             Response file (text file
RSP   Response File;OS/2              RSP    containing input expected by
                                             eg. LINK);

      Rich Text Format text file
RTF   (help file script);many - MS    RTFD   RTF-Packet;NeXT
      Word
                                          Run-Time library;Norton
RTL   HP RTL graphic file;          RTL
                                          Utilities


                                          RTPatch software update
RTL   Text file;                    RTP   package data file;Pocket
                                          soft patch


                                          Runtime library file ;CA-
RTS   Realizer executable file;     RTS
                                          Realizer


                                          PC Tools for Windows
RUL   Echo-conference rules;        RUN
                                          batch file;PC Tools


                                          Mobile pricelist data
RUS   Russian text;                 RV
                                          file;Mobile


                                          Borland Resource
RVW   Review;                       RWS   Workshop symbol
                                          file;Resource Workshop


      Resource Workshop data
RWS                                 RWX   Criterion RenderWare;
      file ;Borland C++



RWX   MEME Shape File;              RWX   Script;RenderWare



RXD   Reflex 1 datafile;Reflex 1



      ASSEMBLY source code                Multi Edit macro file
S                                   S
      file ;unix                          source;Multi Edit



S$$   Temporary sort file ;Sprint   S1K   S1000 Simnet Format;


                                          Music (16
      Digiplayer/ST3 Sample
S3I                                 S3M   channels);Scream Tracker
      File;Digiplayer - ST3
                                          3.0 - DMP


SA?   Packed mail;FTN software      SAF   see SAIF;
       Spatial Archive Interchange
SAIF                                 SAL   Datafile ;SORITEC
       Format;


                                           Text file;Samna - Lotus
SAM    Ami Pro data file;Ami Pro     SAM
                                           Ami/Ami Pro



SAR    Archive;SAR                   SAT   ACIS;



SAV    Backup file (saved file);     SAV   Configuration;



SAV    Saved game situation ;        SB    Audio file (signed byte);



       Raw Signed Byte (8bit)              Raw Signed PCM Byte 8bit
SB                                   SB
       data;AWAVE                          data;AWAVE


                                           Sound Blaster Instrument
SBD    Storyboard ;Storyboard Editor SBI
                                           file (Creative Labs);


       Emu SoundFont Bank
                                           Stony Brook Pascal
SBK    (AWE32 Bank);Convert (c)      SBL
                                           library;SB Pascal
       Villena


                                           Support file ;Source
SBP    DML program ;Superbase 4      SBR
                                           Browser


       Notes related to
SBT                                SC      Display driver;Framework II
       record ;Suberbase 4 Windows



SC     PAL script ;Paradox           SC    Script;Borland Paradox



       Renamed dBASE III screen            Screen device
SC3                                  SC3
       mask file ;dBASE IV                 driver ;Harvard Graphics 3.0



SCA    Datafile;SCA                  SCC   Text file;
      SCODOL film recorder (Scan
                                            Multimedia
SCD   Conversion Object Description SCF
                                            show ;ScoreMaker
      Language);SCODOL


      Spelling checker configuration        Project schedule ;Schedule
SCF                                  SCH
      file ;Symphony                        Publisher



SCH   Scheme;P CAD - Orcad            SCI   Fax ;SciFax



      System Configuration
SCI                                   SCM   Scheme source code file;
      Information;



SCN   SCeNe RTrace;                   SCN   Screen file ;Kermit



SCO   High score;                     SCO   High score;



SCP   Script;BITCOM                   SCR   Any other screen system;



      DEBUG source code file;DOS            Forth screen (source)
SCR                              SCR
      Debug                                 file;Forth


      Screen - screen
SCR   snapshot ;dBASE IV -            SCR   Screen font ;LogoScript
      Procomm Plus


SCR   Screen saver ;Windows 3.x       SCR   Screen snapshop ;



      Script file source;TeleMate -         Additional (FPT) screen
SCR                                   SCT
      Kermit - 1st Reader                   description file;FoxPro



SCX   Chart ;Stanford Chart           SCX   Graphics format;ColoRIX



      Main (DBF) screen description
SCX                                 SCY     Security file;ReaGeniX
      file;FoxPro
                                              Fidonet's Software
      Sound Designer I audio
SD                                     SDA    Distribution Network file
      file;AWAVE
                                              archive description;


                                              System Data Format file
SDF   Source definition file;Sourcer   SDF
                                              (fixed length ASCII text);


      Software Distribution Network           Roland S-550/S-50/W-30
SDI                                 SDK
      Info file;                              Disk Image;


      Alias Wavefront Scene                   Spacial Data Modeling
SDL                                    SDML
      Description Language;                   Language;


      Software Distribution Network
                                              SmartDraw File;SmartDraw
SDN   compressd file                SDR
                                              Pro
      archive ;pak251.exe


      MIDI Sample DUMP Standard               Spatial Data Transfer
SDS                             SDTS
      File;                                   Standard;


                                              Sample DUMP Exchange
SDW   Ami Draw Symbol File;            SDX
                                              File;


      Self-Extracting compressed
SEA                                    SEC    ----- compressed file;
      Macintosh file Archive;


      Diskreet encrypted                      Secret key ring file ;Pretty
SEC                                    SEC
      file;Diskreet                           Good Privacy RSA System


      Secured animation file;Disney
SEC                                 SEP       Printer separator page;
      Animation Studio


                                              Sequential Instruction
SEQ   Atari animation file;            SEQ
                                              File ;Bubble Chamber


      Session info ;Clarion Modula-           Configuration file ;1st
SES                                 SET
      2                                       Reader

                                              Extension used by Norton
      Driver sets created by                  Backup and CPS Backup
SET                                    SET
      Install ;Symphony                       for setup info;Norton
                                              Backup - CPS Backup
                                               IRCAM Sound File ;CSound
SET   Setup options file;               SF     package - MixView sound
                                               sample editor
      WPS attribute storage (OS/2
      WorkPlace Shell)                         Emu SoundFont Bank v2.0
SF                                      SF2
      wp_root.sf;OS/2 WorkPlace                file;AWAVE
      Shell

      HP Soft font (obsolete under             SoundStage Data
SFB                                     SFD
      Windows);                                file;AWAVE


                                               Graphics ;SIS
SFF   Scene File Format;                SFI
                                               Framegrabber


                                               PCL 4 bitmap font
      Printer font (HP LaserJet
SFI                                SFL         (landscape);landscape -
      landscape);Ventura Publisher
                                               Intellifont -Ventura Publisher


                                               Bitstream font file - fontware
SFN   Font ;SPX                         SFO
                                               format;


      PCL 4 bitmap font ;portrait -            Sonic Foundry Sample
SFP                                     SFR
      Intellifont - Ventura Publisher          Resource;AWAVE


      PCL 5 scalable font
SFS                                     SFT    Screen font ;ChiWriter
      file ;Intellifont


      SFX (self-extracting archives)           Graphics ;Stanford
SFX                                  SG1
      script;RAR                               Graphics


      Document with                            Graphics file ;IRIS - Silicon
SGF                                     SGI
      graphics ;Starwriter                     Graphics


      Statistics;STATGRAPHICS                  Save/get keyboard
SGP                                     SGT
      Plus                                     macro ;Signature



SH    ASCII archive;SHAR                SH     Unix shell script;



      Presentation;Harvard
SH3                                     SHAR   Archive;UNSHAR (Unix)
      Graphics 3.0
SHB   Background ;CorelShow            SHG   Segmented Hyper-Graphic;



                                             Shell macro ;WordPerfect
SHK   Apple II archive;SHRINKIT        SHM
                                             Library


      Shape file and source file for
SHP                                    SHR   see SHAR;
      text fonts;AutoCAD


      HTML format for                        Presentation ;Harvard
SHT                                    SHW
      WWW;NetScape                           Graphics 2.0 - CorelShow


      Slide show ;WordPerfect
SHW                                    SHX   Shape entities ;AutoCAD
      Presentations


      Setup Installation Files               Current program
SIF                                    SIG
      info;Windows NT Setup                  settings ;Signature


      Signature file;ThunderByte             Backup file
SIG                                    SIK
      AntiVirus - PopMail                    (Sicherungskopie);MS Word


                                             SYLK Spreadsheet file
SIT   Archive (Macintosh);STUFFIT SKY
                                             (used by Multiplan);


                                             P-CAD library (symbols);P-
SL    S-Lang source code file;         SLB
                                             CAD


                                             SALT (script from Telix)
SLB   Slide library;AutoCAD            SLC
                                             compiled code;Telix


                                             Slide ;MAGICorp Slide
SLD   Slide ;AutoCAD                   SLI
                                             Service


      MS Excel import format;MS              SYLK Symbolic Link format
SLK                                    SLK
      Excel                                  data file ;MultiPlan


                                             SALT Script Application
SLL   Sound data file;                 SLT   Language for Telix script
                                             source;Telix
SLV   Solution for any game;many   SM    Maillist ;SoftSpoken Mailer



                                         SMALLTALK source code
SM    Script ;ScriptMaker          SM
                                         file;



SM    Text file ;Samna Word        SMF   Fax ;SMARTFAX



                                         Font (ParaGraph's
SMM   Ami Pro Macro File;Ami Pro   SMN
                                         WorkScript format);


                                         Samplevision
SMP   Sample (sound file);         SMP
                                         File;Samplevision


                                         Compressed song
SMT   Text file ;Smart Ware II     SN
                                         file;Sound Club editor


      Digitized sound                    Power Chords drum sound
SND                                SND
      file ;Macintosh/ATARI/PC           file;Power Chord


      Song (midi sound);Midisoft
SNG                                SNO   SNOBOL4 source code file;
      Studio - Prism


      Book-shelf for                     Output video format from
SNP                                SNP
      .BOO;READIBM                       Computer Eyes equipment;


      Microsoft Access report
SNP                                      ;
      snapshot


      Solution eg. game                  Network serial
SOL                                SOM
      walkthroughs;                      numbers;Quattro Pro



SOM   Sort information;Paradox     SON   Song;SBStudio II



      SBStudio II Sound
SOU                                SOU   Sound data (sound tool);
      File;SBStudio II
SP    Archive (unix);SPLINT         SPC     Program;MS Multiplan



      Temporary file ;WordPerfect           Scalable font ;Speedo -
SPC                                 SPD
      for Win                               Harvard Graphics 3.0


      Slide presentation
SPF                                 SPG     Glossary ;Sprint
      file ;EnerGraphics


      Graphics (Siemens and                 Still Picture Interchange File
SPI                                 SPIFF
      Philips scanner);                     Format;


                                            Customized printer
SPL   Archive ;SPLINT               SPL
                                            driver ;Sprint


      Personal spell                        Print spooling file ;Windows
SPL                                 SPL
      dictionary ;Signature                 3.x


                                            Data
SPL   Sample;                       SPM
                                            wp{wp}.spm;WordPerfect



SPP   Printer file ;Sprint          SPR     Document letter ;Sprint



      Generated executable screen
SPR                               SPR       Sprite;
      file;FoxPro



SPR   Story Board sprites;          SPS     Screen driver ;Sprint


                                            Data support file (MITAC
      SPSSx source code                     disk/system management
SPS                                 SPT
      file;VAX/VMS                          utility pack);MITAC
                                            disk/system management


SPT   SPITBOL source code file;     SPW     Worksheet;SigmaPlot



      Compiled executable screen            Squish message
SPX                                 SQD
      file;FoxPro                           base;Squish
      Squish message base                 SQL language code;Any
SQI                                 SQL
      index;Squish                        SQL database


      Squish message base
SQL                                 SQZ   Archive;SQUEEZE
      lastread pointers;Squish


      FOXPRO Squeeze
SQZ                                 SRC   Multi-edit source;Multi-Edit
      file;FOXPRO


                                          Sun Raster File graphics
SRC   Source ;DataFlex              SRF
                                          file;



SRP   Script ;QuickLink             SS    Bitmap graphics ;Splash



SS    Screen saver;DN               SSD   Datafile ;SAS/PC



SSP   Datafile ;SAS Transport       SST   AVHRR graphic file;



      Instrument library ;Scream          SMALLTALK source code
ST                                  ST
      Tracker                             file ;Little Smalltalk



ST    Stamp ;NeoPaint               STA   Data file;Statistica



STA   Saved state ;Reflection 4.0   STA   Stack ;Spinmaker Plus



                                          Standard
STB   Stub library;Genus GX Kernel STD
                                          (something..);LogoScript


      State Transition Diagram
STD                                 STF   Archive;SHRINKTOFIT
      graphic file;Prosa


                                          Music format (4 channels)
      Stereolithography Interface
STL                                 STM   (Scream Tracker
      Format;
                                          Module);ST - DMP
      State Transition Diagram             Pascal stub OBJ file;Genus
STM                                 STO
      model file;Prosa                     GX Kernel


                                           Structure list object
STR   Gate3 table structure file;   STR    file ;dBASE Application
                                           Generator


      Music format (Scream Tracker         Project status info ;MS
STS                                STS
      Song);ST 2.0-2.3                     C/C++


      Data file;SmartTerm for
STW                                 STX    Electronic book;SmarText
      Windows



STX   Music format;                 STX    Tax form;CA-Simply Tax


      "Ami Pro Template (Style);
STY   used by other programs for    STY    Style library or sheet;many
      `styles`";Ami Pro


                                           SUIT library ;Simple User
SU?   Packed mail;FTN software      SUI
                                           Interface Toolkit



SUM   Summary;                      SUN    Sun rasterfile graphics file;


      Supplementary
                                           Autosave file for
SUP   dictionary ;WordPerfect for   SVD
                                           document ;MS Word
      Win

      Autosave file for glossary ;MS
SVG   Word, Scalable Vector          SVQ   Music format;
      Graphics


      Autosave file for style              Super Video
SVS                                 SVW
      sheet ;MS Word                       Windows;Conversion Artist


      Interchange,                         Raw Signed Word (16bit)
SVX                                 SW
      8SVX/16SV;AWAVE                      data;AWAVE


      SWAG Pascal Snippets
SWG                                 SWP    Document backup ;Sprint
      file;SWAG
SWP   Swap file;                     SXP   3DS Process file;3D Studio



      SmartPix symbol library ;Ami
SY1                                  SY3   Harvard Graphics format;
      Pro


                                           Backup of startup files
      Symbol file ;Harvard Graphics
SY3                                 SYD    created by QEMM (?)
      3.0
                                           autoexec.syd;


                                           Compiler symbolic
SYD   Sysedit backup file;Sysedit    SYM
                                           information file;


      P-CAD component                      Precompiled
SYM                                  SYM
      (symbols);P-CAD                      headers ;Borland C++


      Program symbol table ;Power          Symbol file ;Harvard
SYM   C - MS ILink incremental    SYM      Graphics 2.0 - MS Windows
      linker                               SDK


      SDSC Synu image file;SDSC
SYN                                  SYN   Synonym file;MS Word 5
      Image Tool


                                           System file - device driver or
      Datafile ;SYGRAPH -
SYS                                  SYS   hardware configuration
      SYSTAT - SPSS/PC
                                           info ;DOS

                                           Yamaha SY-85/SY-99
      Graphics file (symbol);Harvard
SYW                                  SYW   Wave File;Convert (c)
      Graphics Win
                                           Villena


      Archive without compression
T                                    T     TADS source;
      (tape);tar


      Tester symbol                        Turbo Help file (Pascal, C,
T     table;ReaGeniX code            T?H   Assembler, ...);Borland
      generator                            Thelp


      Temporary file for Sort or
T44                                  T64   Program;C64S emulator
      Index ;dBASE IV


                                           Help file for Turbo
TAG   Query tag name ;DataFlex       TAH
                                           Assembler ;Borland C++
TAL   Adobe Type Align;Adobe         TAL   Text illustration ;TypeAlign



      Tape file ;ZX Spectrum
TAP                                  TAR   Archive;TAR
      emulator by g.a.lunter


      Archive;WinZipNT - TAR -
TAZ                                  TB1   Font file;Borland Turbo C
      COMPRESS



TB2   Font file ;Borland Turbo C     TBF   Fax ;Imavox TurboFax



      FOXPRO template backup               Memo backup;dBASE IV -
TBK                                  TBK
      file;FOXPRO                          FoxPro


                                           Aldus TableEditor
TBK   Toolbook;Asymetrix ToolBook TBL
                                           file;TableEditor


                                           Graphics file (native
TBL   Gate3 table file;              TBL   format);PageMaker
                                           TableEditor


      "Short for Table; used by
TBL                                  TBL   Table of values;OS/2
      many programs";


      Norton Desktop custom                Text elements ??
TBR                                  TBS
      toolbar;NDW                          (Textbausteine);MS Word


                                           Configuration ;Turbo C -
TBX   Table ;Project Scheduler 4     TC
                                           Borland C++


      Help file ;Turbo C - Borland         Tool Command Language
TCH                                  TCL
      C++                                  source code;Swat


      Drawing;TurboCAD for                 Config from Turbo
TCW                                  TD
      Windows                              Debugger;Turbo Debugger


      Compressed diskette in a             Configuration file;Turbo
TD0                                  TD2
      file ;Teledisk                       Debugger for Win32
TDB    Database ;TACT              TDDD   Imagine Object File Format;



                                          Typeface definition
TDF    Speedo font file;           TDF
                                          file ;Speedo


       Help file for Turbo                Keystroke recording
TDH                                TDK
       Debugger ;Borland C++              file ;Turbo Debugger


                                          Symbol table ;Turbo
TDR    Contens of Arvid tape;      TDS
                                          Debugger


       Configuration file;Turbo
TDW                                TEF    Fax ;Relisys TEFAX
       Debugger for Windows



TEL    Host file ;Telnet           TEM    Input template ;IconAuthor



       Turbo Editor Macro Language
TEM                                TET    Tetris results;DN
       script ;Borland C++


                                          TeX text file ;Scientific Word
TEX    Datasheet ;Idealist         TEX
                                          - TeX



TEXT   Text file;                  TF     Configuration ;Turbo Profiler



                                          Catalogue file ;Tobi's Floppy
TFA    Area file ;Turbo Profiler   TFC
                                          Cataloguer


       self executing TansForm
TFF
       dialogue ;TansForm


       Help file for Turbo                Tagged font metric
TFH                                TFM
       Profiler ;Borland C++              file ;Intellifont


                                          Statistical
TFM    TeX Font Metric file;TeX    TFS
                                          information ;Turbo Profiler
                                           Targa True Color bitmapped
TG1   Project file;On Target        TGA
                                           format;


      Archive;WinZipNT - TAR -
TGZ                                 TH?    Packed mail;FTN software
      GNUzip


      Windows'95 Desktop                   Picture Publisher or
THE                                 THM
      Theme;Microsoft Plus                 PhotoMagic Thumbnail;


      Thesaurus                            FTN special file with
THS   dictionary;WordPerfect for    TIC    assotiated file
      Win                                  description;ALLFIX
                                           TIFF (tagged image format
                                           file) bitmapped file;Alchemy -
TIF   see TIFF;                     TIFF
                                           PhotoStyler -PageMaker -
                                           CorelDRAW
      Fuzzy logic knowledge
TIL   base ;Togai InfraLogic Fuzzy- TIS    Tile set;MahJongg 3.0
      C Compiler


                                           Interoperaility Type
TJL   Backup file;VAXTPU editor     TLB
                                           Library;Win95


      Reference table ;Bubble
TLB                                 TLB    Text library;VAX
      Chamber


                                           Compiled Tool Command
TLB   Type library;Visual C++       TLC    Language source
                                           code;Swat


TLD   Disk Image;Teledisk           TLP    Project ;TimeLine



      Tagged Font Metric                   ZTG global optimizer default
TMF                                 TMO
      file;WordPerfect for Win             output file ;Zortech C++


                                           TeleMate compiled
TMP   Temporary file;               TMS
                                           script;TeleMate


      Table Of Contents text file          Borland C++ 4.x reserved
TOC                                 TOK
      (ASCII);                             word list;BCW.EXE
      Self-extracting file archive          Session-state file;Turbo
TOS                                  TP
      (Atari ST);                           Profiler


      Turbo Pascal cfg file;Turbo           Template ;Harvard Graphics
TP                                   TP3
      Pascal                                3.0


      Downloadable PCL Soft font            Downloadable PCL Soft font
TPB                                  TPF
      file backup;HiJaak                    file ;HiJaak


                                            Resident units library ;Turbo
TPH   Help file ;Turbo Pascal        TPL
                                            Pascal


      Template ;Harvard Graphics            Template file;GoldEd -
TPL                                  TPL
      2.0                                   ITrack


      Protected Mode                        Borland Pascal DOS Mode
TPP                                  TPU
      Units ;Borland Pascal 7.0             Library;Borland Pascal


      Command file (VAXTPU                  Borland Pascal Windows
TPU                                  TPW
      editor);VAXTPU editor                 Library;Borland Pascal


      Session-state file;Turbo
TPW                                  TPZ    Archive;TAR - GNUzip
      Profiler for Windows


                                            Session-state
      Man page input suitable for
TR                                   TR     settings;Turbo Debugger for
      troff -man ;cawf2.zip
                                            DOS


      Session-state settings;Turbo          Debug support file;Power
TR2                                  TRC
      Debugger for Win32                    CTrace


                                            Tiled Raster Interchange
TRE   Directory tree file;PC-Tools   TRIF
                                            Format;


      Track (i.e. video sequence),          Terminal settings ;Windows
TRK                                  TRM
      used by many games;                   3.x


      Translation support
TRN                                  TRS    Executable file ;Micrografx
      file;Quattro - Clarion
                                             Session-state
TRU   True Basic source file;          TRW   settings;Turbo Debugger for
                                             Windows


      Microsoft Multimedia Task              Turbo Assembler
TSK                                    TSM
      Application;Win95                      Manual;TASM for OS/2


      Printer test file ;WordPerfect
TST                                    TSV   Tab Separated Values;
      for Win



TTF   TrueType Font file;              TU?   Packed mail;FTN software



      The Ultimate Draw file;The
TUD                                    TUT   Tutorial;
      Ultimate Draw


                                             Overflow file above insert
TV    Table view settings ;Paradox     TVn   point in Doc n;WordPerfect
                                             for Win


TVF   Table view settings;dBASE        TXF   Archive;TAR and FREEZE



                                             Common name for ASCII
TXI   Support file;TeX                 TXT
                                             text file;


      Yamaha TX-16W Wave                     Time Stamp (PageMaker
TXW                                    TYM
      File;Convert (c) Villena               4);PageMaker 4


                                             Archive;TAR - COMPRESS -
TZ    Archive;TAR - COMPRESS           TZB
                                             BTOA


                                             Raw Unsigned Byte (8bit)
U8    Sample;                          UB
                                             data;AWAVE



UC2   Archive;UC II                    UCN   New archive;UC II



                                             Raw Unsigned DWord
UDF   Filter;Photostyler               UDW
                                             data;AWAVE
                                         Universal Hint System
UE2   Encrypted archive;UC II     UHS
                                         (binary file);


      Espire source code
UI                                UI     User interface;Sprint
      file;Geoworks UI Compiler


      Long prompts for                   Espire header file;Geoworks
UIF                               UIH
      windows;WordPerfect for Win        UI Compiler


                                         Information about uploaded
UL    ULAW audio file;            ULD
                                         files ;Procomm Plus



ULT   Music ;UltraTracker         UMB    Backup file;MemMaker



                                         Music format;UNIMOD -
UNI   Datafile ;Forecast Pro      UNI
                                         MIKMOD

                                         UniqueObject Markup
      Text file containing UNIX          Language (UOML) is a XML-
UNX                               UOML
      specific info;                     based markup language;
                                         uniqueobject.com

                                         Compiled update
UPD   Update data;dBASE           UPO
                                         data ;dBASE



URT   Utah Raster Toolkit;        USE    Log file;


      Printer font with USASCII          User database
USP   extended character          USR    file ;Procomm Plus - Turbo
      set ;PageMaker                     C++ tour

      Encoded file                       Encoded file
UU    (ASCII);UUENCODE/UUDEC UUE         (ASCII);UUENCODE/UUDE
      ODE                                CODE


      Raw Unsigned Word 16bit            UltraTracker
UW                                UWF
      data;AWAVE                         WaveSample;UltraTracker


      Consistency check support          Main input file for an
V                                  V
      file;ReaGeniX code generator       image ;Vivid 2.0
                                            Validity checks and
V8    Covox 8bit file;AWAVE           VAL   referential integrity ;Paradox
                                            for Windows


      Values list object file;dBASE
VAL                                   VAN   Animation;VistaPro
      Application Generator


      Value Added
VAP                                   VAR   Variable file ;IconAuthor
      Process;NetWare 2.xx


      Visual Basic Custom Control           Visual Basic
VBR                                   VBX
      file;Visual Basic                     eXtension;Visual Basic


      Visual Basic Setup Wizard             Include file with color
VBZ                                   VC
      Template;Setup Wizard                 definitions ;Vivid 2.0



VC    Spreadsheet ;VisiCalc           VCA   Visual Clip Art;



                                            Visual workbench
VCR   VCR drivers for Arvid;          VCW
                                            information ;MS Visual C++


      Spreatsheet ;VisiCalc
VCX                                   VDA   Bitmap graphics;
      Advanced


      Story Board video image;Story         Drawing;ComputerEasy
VDO                                 VDR
      Board                                 Draw


                                            View file ;Clipper 5 - Lotus
VEW   GroupWise for Windows;Win       VEW
                                            Approach


      FontLab Database
VFA                                   VFM   Ventura Font Metrics file;
      file;FontLab


                                            Voting Form for
VFM   Voting Form;Voter               VFN
                                            Customers;Voter



VGA   VGA display driver;             VGA   VGA display font;
      VGA display driver;Generic               Graphics file ;Ventura
VGD                                    VGR
      CADD                                     Publisher


                                               Watcom editor
VI    Graphics file ;Jovian Logic VI   VI
                                               script;VI.EXE


                                               Graphics (Video Image
VIC   see VICAR;                       VICAR   Communication and
                                               Retrieval);


      Bitmap graphics (YUV12C M-               Graphics
VID                              VID
      Motion Frame Buffer);                    format;Word&Deed


      MS-DOS Shell Monitor file;MS-
VID                                 VID        Screen device driver ;Word
      DOS 5


                                               Khoros Visualization Image
VIF   see VIFF;                        VIFF    File Format;SDSC Image
                                               Tool


VIK   Graphics format (VIKING);        VIR     Virus or infected file;



                                               Virtual Loadable
VIS   VIS graphics file;               VLM
                                               Module;Netware


                                               Virtual memory
VM    Virtual Memory file;Geoworks VMC         configuration;DOS/4GW PM
                                               32X DOS Extender


      Font characteristics ;Ventura            Text file containing VMS
VMF                                    VMS
      Publisher                                specific info;


      Include file with object                 Sound format (Creative
VO                                     VOC
      definition ;Vivid 2.0                    Lab's Sound File);PlayVoc


                                               Dialogic adpcm file;AWAVE,
VOF   Object folder ;VZ Programmer VOX
                                               CoolEdit



VP    3DS Video posting;3D Studio      VPF     Vector Product Format;
VPG   Graphics file ;VPGraphics    VPH   Virtual Pascal Help;VP/OS2



VPI   Virtual Pascal Unit;VP/OS2   VRM   Overlay file ;QuattroPro



      Visual rexx source;WATCOM          Virtual Reality Modeling
VRM                             VRML
      VREXX                              Language;NetScape


                                         Video Resource eg. video
VRP   Project;WATCOM VX№Rexx VRS
                                         device driver ;WordPerfect


      Include file with surface
VS                                 VSD   Diagram ;Shapeware Visio
      definition ;Vivid 2.0



VSD   Visio drawing;Visio          VSM   Simulation model ;VisSim



                                         SmartShapes
VSP   Sprite ;SPX                  VSS
                                         file ;Shapeware Visio


                                         Truevision Vista graphics
VSS   Visio Template;Visio         VST
                                         file;



VST   Visio Template;Visio         VUE   Animation ;3D Studio



VUE   View ;dBASE IV - FoxPro      VW    Text file ;Volkswriter



                                         Windows 3.x virtual device
VWR   File viewer file ;PC Tools   VXD
                                         driver;Windows 3.x


                                         Yamaha SY-series wave
W     Word chart file ;APPLAUSE    W01
                                         files;AWAVE


      Yamaha TX16W wave                  Printer font;AST TurboLaser
W01                                W30
      file;AWAVE                         - Ventura Publisher
                                             Something for Windows95
W31   Startup file;Windows 3.1      W40
                                             (e.g. config.w40);Win95


      Temporary file for Sort or             Something for
W44                                 W95
      Index ;dBASE                           Windows95;Win95


      War Allocation Daemon;Doom             ProComm Script File
WAD                              WAS
      - Doom2                                (source code);ProComm


      Sound format (Microsoft
                                             ProComm compiled
WAV   Windows RIFF WAVE);Media WAX
                                             script;ProComm
      Player


WB1   Notebook ;Quattro Pro         WB2      Spreadsheet;Quattro Pro



      MS Windows Batch                       Document/workbook ;Word
WBF                                 WBK
      File ;Catch                            Perfect for Win


      Norton Desktop;Norton                  Wilsonware Batch
WBT                                 WBT
      Desktop                                file;Winbatch


      Macro token list ;WordPerfect          WordPerfect Macro
WCD                                 WCH
      for Win                                Facility;WP


      Data transmission file ;MS
WCM                                 WCM      Macro ;WordPerfect for Win
      Works


      Product information
WCP   description;WordPerfect for   WD       InfoSelect Data file;
      Win


WDB   Database;MS Works             WE?      Packed mail;FTN software



                                    WebOOG Web Object Oriented
WEB   WEB source code file;
                                    L      Graphics Library;


      Turtle Beach WaveFront                 Turtle Beach WaveFront
WFB                                 WFD
      Bank;AWAVE                             Drum;AWAVE
      Form object;dBASE Form
WFM                                 WFN    Font ;CorelDRAW
      Designer


      Turtle Beach WaveFront
WFP                                 WFX    Data file ;Winfax
      Prog.;AWAVE


                                           Worksheet ;Lotus 1-2-3 for
WG1   Worksheet ;Lotus 1-2-3/G      WG2
                                           OS/2


                                           Window file;FoxPro -
WID   Width table ;Ventura Publisher WIN
                                           dBASE


                                           Spreadsheet ;Lotus 1-2-3
WIZ   Page wizard ;MS Publisher     WK1    version 2.x - Symphony
                                           1.1+


      Spreadsheet ;Lotus 1-2-3             Spreadsheet ;Lotus 1-2-3
WK3                                 WK4
      version 3.x                          version 3.4


      Document ;WordPerfect for            Spreadsheet ;Lotus 1-2-3
WKB                                 WKE
      Win                                  educational version


      Spreadsheet format;Lotus 123
WKI                                WKQ     Spreadsheet ;Quattro
      2x


      Spreadsheet ;Lotus 1-2-3
WKS   version 1A - Symphony 1.0 -   WKS    Workspace ;Xlisp
      MS Works


      Spreadsheet format;Dos               Graphics ;Virtus
WKZ                                 WLK
      Navigator                            Walkthrough


                                           Backup of startup files by
      Walk Through for any
WLK                                 WMC    Windows MathCad
      game;many
                                           autoexec.wmc;MathCad


      Macro file ;WordPerfect for
WMC                                 WMC    Text file ;WordMARC
      Win


      Windows MetaFile vector              Graphics (Windows Magic
WMF                                 WMP
      graphics;                            Icon Palette);
                                        Corel Draw Font
WN    Text ;NeXT WriteNow         WNF
                                        File;CorelDraw


                                        Organization;Windows
WOA   Swap file;Windows 3.x       WOC
                                        OrgChart


      Music (8 channels);Grave
WOW                               WP    Word Perfect Format;WP
      Mod Player


                                        Document;WordPerfect 6.0 -
WP5   Document ;WordPerfect 5.x   WPD
                                        PFS:WindowWorks


      Windows printer driver
WPD                               WPF   Fax ;WorldPort
      (uninstallable);Windows


                                        WordPerfect Graphics
WPF   Form;WordPerfect            WPG
                                        vector graphics;DrawPerfect


      Watcom C/C++ IDE                  Macros;WordPerfect for
WPJ                               WPK
      project;IDE.EXE                   Win


      MediaRack Wave
WPL                               WPM   Macros ;WordPerfect
      Playlist;MediaRack


                                        Compressed
WPS   Text document;MS Works      WQ!
                                        spreadsheet ;Quattro Pro


                                        Spreatsheet;Symphony 1.1 -
WQ1   Spreadsheet ;Quattro Pro    WR1
                                        1.2 - 2


                                        Write editor format;Write -
WRD   Template ;Charisma          WRI
                                        WinWord



WRK   Spreadsheet ;Symphony 1.0   WRP   Archive;Amiga WARP



      Windows Resource eg. printer
WRS                                WS   APL Worksheet;
      driver;WordPerfect for Win
WS    Text file ;WordStar 5.0-6.0     WS2    Text file ;WordStar 2000



                                             Workspace ;Fortran
WSD   Document;WordStar               WSP
                                             PowerStation


      Wavelet-packet Scalar
WSQ                                   WSRC   X-wais source;
      Quantization Format;


                                             Button bar for document
WST   Text file ;WordStar             WWB    window ;WordPerfect for
                                             Win


      Keyboard layout ;WordPerfect           Document;EXP for
WWK                                WXP
      for Win                                Windows


                                             AVS X image file;SDSC
X     Archive;X1.EXE                  X
                                             Image Tool


                                             Secondary indexes;Borland
X     LEX source code file;           Xnn
                                             Paradox



X3D   x3d and xdart Formats;          XBM    X11 Bitmap graphics file;



                                             Extended crack file (usually
XCK   Extended crack;                 XCK
                                             text);


      Xtree for Windows Script               OS/2 extended disk format
XCL                                   XDF
      file;Xtree for Win                     image;XDFCOPY.EXE


      Directory Manipulator for 32-
                                             Printer font;Xerox 4045 -
XDM   bit Protected Mode;Xenotech     XFN
                                             Ventura Publisher
      Research Labs


      Ventura Publisher Bitmap
XFR                                   XFT    24 pin printer font ;ChiWriter
      Editor Font file;


      Fast Tracker 2 instrument              Fastracker 2.0 Instrument
XI                                    XI
      file;AWAVE                             File;Fastracker 2.0
XLA   Add-in macro sheet ;MS Excel XLA       XLib Archive ;xlibpas2.zip



XLB   Excel Toolbar;MS Excel         XLC     Excel Chart;MS Excel



XLD   Excel Dialog;MS Excel          XLK     Excel Archive;MS Excel



      Excel Dynamic Link
XLL                                  XLM     Excel Macro File;MS Excel
      Library ;MS Excel



XLS   Excel Spreadsheet;MS Excel     XLT     Excel Template;MS Excel



      Translation table ;Lotus 1-2-3 -
XLT                                    XLV   Excel Module;MS Excel
      Symphony - Procomm Plus

                                             Fast Tracker 2 extended
                                             module;AWAVE, Mod4Win,
XLW   Excel Workbook;MS Excel        XM
                                             FastTracker,
                                             ImpulseTracker

      Music format;FastTracker -             Compressed eXtended MIdi
XM                                   XMI
      Cubic Player                           music;



XNF   Standard Network File form;    XOF     RenderMorphics;



      eXtended Pattern;FastTracker
XP                                 XPM       X11 Pixel Map graphics file;
      2.0



XQT   Executable file ;Waffle        XQT     Macro sheet ;SuperCalc



                                             External translation
XRF   Cross-reference file;          XTB
                                             table ;LogoScript


                                             X Window System window
XTP   XTreeGold overlay;XTreeGold XWD        dump image graphics
                                             file ;SDSC Image Tool
XWK   Keyboard mapping ;Crosstalk XWP        Session;Crosstalk



                                             Encoded file
XWP   Text file ;Xerox Writer          XX
                                             (ASCII);XXENCODE


      Encoded file
XXE                                    XY    Text file ;XY Write
      (ASCII);XXENCODE



XY3   Text file ;XYWrite III           XYW   Text file ;XyWrite III



Y     Archive (Amiga);Yabba            Y     YACC grammar file;



      Secondary index;Borland                Data custom/nature.yal;Arts
Ynn                                    YAL
      Paradox                                & Letters



YC    Archive;YACC (YAC.EXE)           YUV   Graphics format (YUV);



YZ    Archive;YAC



      Archive;WinZipNT -                     ZIP
Z                                      Znn
      COMPRESS - PACK                        archive;PKZIP/PKUNZIP


                                             Snapshot ;ZX Spectrum
Z3    Infocom game module;             Z80
                                             emulator by g.a.lunter


                                             Compressed ZiffNet text
ZAD   ZFax digitized voice file;ZFax   ZDG
                                             document ;Zview



ZER   Data file;ZERBERUS               ZGM   Graphics;Zenographics



ZIP   Archive;PKZIP/PKUNZIP            ZOM   Archive;Amiga ZOOM
ZOO   Archive;ZOO     ZVD   ZyXEL Voicefile ;Z-Fax



ZZE   Encoded file;

				
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