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TheReference: Computers: File Extensions
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$ ~ 0 1 2 3 4 8
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Legend: PR: Program Name ST: Standard format - Dataname
$ TOP
$$A PR: OS/2
$$F Database file PR: OS/2
$$P notes PR: OS/2
$$S Spreadsheet file PR: PMSPREAD OS/2
$D$ Planner file PR: OS/2
$DB temporary File PR: DBASE IV
$ED temporary Editor file PR: MS C
$VM temporary File from Virtual Managers PR: MS WINDOWS
~ TOP
~ temporary File
~MN Menu Backup PR: NORTON COMMANDER
0 TOP
075 75x75 dpi screen characters PR: VENTURA PUBLISHER
085 85x85 dpi screen characters PR: VENTURA PUBLISHER
091 91x91 dpi screen characters PR: VENTURA PUBLISHER
096 96x96 dpi screen characters PR: VENTURA PUBLISHER
0B Printer Font LineDraw enhanced characters PR: PAGEMAKER
1 TOP
15U Printer Font PR: PAGEMAKER
1ST ASCII Text, Program Information ST: README.1ST
2 TOP
286 Driver Standard Mode PR: MS WINDOWS
2GR Screen Grabber EGA/VGA Mode PR: MS WINDOWS
3 TOP
301 FAX Data file PR: SUPER FAX 2000
386 Driver 386 Enhanced Mode PR: MS WINDOWS
3DS Graphic PR: 3D STUDIO
3FX 3-D Effect PR: COREL CHART
3GR Screen Grabber SVGA/XVGA Mode PR: MS WINDOWS
4 TOP
4SW Swap File PR: 4DOS
4TH FORTH Program File PR: FORTH CMP
8 TOP
8 A86 Assembler Program File
8M Printer Font Math 8 enhanced characters PR: PAGEMAKER
8U Printer Font Roman 8 enhanced characters PR: PAGEMAKER
A TOP
A ADA Program File
A Library PR: UNIX
A_T PR: A-TRAIN
A11 Graphic
AB6 Data file PR: AB STAT
AB8 Data file PR: AB STAT
ABC Flowchart PR: ABC FLOWCHARTER 1.x
ABK Automatic Backup PR: COREL DRAW
ABS Information (Abstracts)
ACM Driver (Audio Compression Manager)
ACT ACTOR Program File
ACT FoxDoc Action Diagram PR: FOXPRO
AD Screen Saver file PR: AFTER DARK
ADA ADA Program File
ADB Ada Package Body
ADD Device driver (Adapter Device Driver)
ADF Admin Config file
ADI Plotter file PR: AUTOCAD
ADL MCA Adapter Description Library PR: QEMM
ADM Screen Saver Module PR: AFTER DARK
ADN Add-in PR: LOTUS 1-2-3
ADR Random Screen Saver Module PR: AFTER DARK
ADS Ada Package Specification
ADX Index file PR: APPROACH
AF2 Flowchart PR: ABC FLOWCHARTER 2.0
AF3 Flowchart PR: ABC FLOWCHARTER 3.0
AFL Font PR: LOTUS 1-2-3
AFM Font (Outline Font Metric)
AFP Symbol Palette PR: ABC FLOWCHARTER
AFT Template PR: ABC FLOWCHARTER
AFW Work area PR: ABC FLOWCHARTER
AI Vector graphic PR: ADOBE ILLUSTRATOR
AIF Setup Information PR: ADW KNOWLEDGE WARE
AIO APL File Transfer Format
AIS Graphic (Array of Intensity Samples)
ALL Printer information PR: WORDPERFECT FOR WINDOWS
ALL Symbols and characters PR: ARTS & LETTERS
ALT Menu file PR: WORDPERFECT
ANI Animation
ANM Animation PR: DELUXE PAINT
ANN Help Annotation PR: MS WINDOWS
ANS Text and Layout PR: MS WORD FOR WINDOWS
ANT PR: SIM ANT
APC Printer driver characters PR: LOTUS 1-2-3
APD Printer driver PR: LOTUS 1-2-3
APF Printer driver fonts PR: LOTUS 1-2-3
API Printer driver information PR: LOTUS 1-2-3
APP Add-In Application file PR: SYMPHONY
APP Application (application) PR: DR-DOS / NEXT STEP
APP Relational Application PR: FOXPRO
ARC Archive File PR: MS SCHEDULE
ARC Compressed Archive File PR: ARC
ARJ Compressed Archive File PR: ARJ
ART Raster graphic (Atari)
ASC ASCII Text file
ASD Automatic Backup PR: MS WORD FOR WINDOWS
ASD screen driver PR: LOTUS 1-2-3
ASF Screen font PR: LOTUS 1-2-3
ASF Data file PR: STATGRAPHICS
ASH Assembler Header file PR: TURBO ASSEMBLER
ASI Assembler Include file PR: Turbo C / BORLAND C++
ASM Assembler Program File
ASO Assembler Object PR: TURBO ASSEMBLER
ASP ASPECT Program File PR: PROCOMM PLUS
BK2 Backup PR: WORDPERFECT FOR WINDOWS
BK3 Backup PR: WORDPERFECT FOR WINDOWS
BK4 Backup PR: WORDPERFECT FOR WINDOWS
BK5 Backup PR: WORDPERFECT FOR WINDOWS
BK6 Backup PR: WORDPERFECT FOR WINDOWS
BK7 Backup PR: WORDPERFECT FOR WINDOWS
BK8 Backup PR: WORDPERFECT FOR WINDOWS
BK9 Backup PR: WORDPERFECT FOR WINDOWS
BKI Backup index PR: IBM BOOKMANAGER
BKP Backup PR: WRITE
BKS Backup main (Bookshelf) PR: IBM BOOKMANAGER
BLD BASIC File in BLOAD Format
BLK temporary File PR: WORDPERFECT FOR WINDOWS
BM Graphic (BitMap)
BMK Bookmark for Help file (Bookmarks) PR: MS WINDOWS
BMP BitMaP Graphic PR: MS WINDOWS (PC Paintbrush)
BNK Adlib instrument bank
BOO Book PR: IBM BOOKMANAGER
BOO Compressed Archive File PR: BOO
BPT Bitmap Master File PR: COREL DRAW
BTM Batch To Memory Batch file PR: 4DOS
BTN Button File (ButtonWare)
BUP Backup
BV1 \backup file PR: WORDPERFECT FOR WINDOWS
BV2 \backup file PR: WORDPERFECT FOR WINDOWS
BV3 \backup file PR: WORDPERFECT FOR WINDOWS
BV4 \backup file PR: WORDPERFECT FOR WINDOWS
BV5 \backup file PR: WORDPERFECT FOR WINDOWS
BV6 \backup file PR: WORDPERFECT FOR WINDOWS
BV7 \backup file PR: WORDPERFECT FOR WINDOWS
BV8 \backup file PR: WORDPERFECT FOR WINDOWS
BV9 \backup file PR: WORDPERFECT FOR WINDOWS
C TOP
C C Program File
C00 Print file PR: VENTURA PUBLISHER
C86 C86 C Program File
CA7 Job file PR: BETA 44
CAL Calendar file PR: MS WINDOWS
CAL Spreadsheet file PR: SUPERCALC
CAP Caption PR: VENTURA PUBLISHER
CAP Session capture file PR: TELIX
CAT Catalog PR: DBASE IV
CBL COBOL Program File
CBT Computer Based Training
CC C++ Program File
CCH Chart PR: COREL CHART
CDB Database PR: TURBO C UTILITIES
CDR Vector graphic PR: COREL DRAW
CEL Graphic PR: AUTODESK ANIMATOR
CFG Configuration
CGA CGA screen characters PR: VENTURA PUBLISHER
CGM Vector graphic (Computer Graphics Metafile)
CH Header file PR: CLIPPER 5
CH3 Chart- File PR: HARVARD GRAPHICS
CHI Document PR: CHIWRITER
CHK Temporary File PR: WORDPERFECT FOR WINDOWS
CNV Data CoNVersion file PR: MS WORD FOR WINDOWS; Also: Canvas file (thanks to Tim Brewer
for that reference)
CNV Temporary File PR: WORDPERFECT FOR WINDOWS
COB COBOL Program File
COD Data file PR: MS MULTIPLAN
COD Compiler Program Code PR: FORTRAN
COD Template Source File PR: dBASE
COL Color palette - COLor palette PR: AUTODESK ANIMATOR
COL Spreadsheet file PR: MS MULTIPLAN
COM Program
CON Consolidation file PR: ADW Knowledge Ware
CPI Code Page Information
CPI Graphic (ColorLab Processed Image)
CPL Applet: Control PaneL PR: MS WINDOWS
CPP C++ Program File
CPS ST: CHKLIST.CPS Checksum for Anti-Virus PR: PCTOOLS
CPX Applet: Control PaneL PR: MS WINDOWS
CRD Index Card File PR: MS WINDOWS
CRF Cross-ReFerence PR: MS MASM / Zortech C++
CRP Database PR: DBASE IV
CSQ Queries PR: FOXPRO
CSV Comma Separated Values: Text file (ASCII)
CTF Character code Translation File PR: SYMPHONY
CTL Setup Information
CTX Compressed text
CUF C Utilities Form definition PR: TURBO C UTILITIES
CUR Cursor PR: MS WINDOWS
CUT Bitmap Graphic PR: DR. HALO
CV4 Colors PR: CODEVIEW
CVT Backup ConVerTed Database PR: DBASE IV
CVW Colors PR: CODEVIEW
CXX C++ Program File PR: ZORTECH C++
D TOP
DAT Data, usually in ASCII ST: REG.DAT (Registration) PR: MS WINDOWS / REGEDIT
DB Database PR: PARADOX
DD Compressed Archive File Macintosh PR: DISKDOUBLER
DDI DiskDupe Image PR: DISKDUPE
DDP Device driver Profile file (Device Driver Profile) PR: OS/2
DEF Definitions (Defaults)
DEL ST: CONTROL.DEL - list of data
DEM Demonstration
DEV Device driver
DFD File Flow Diagram Graphic PR: PROSA
DFM File Flow Diagram model PR: PROSA
DFV Print format Template PR: WORD
DHP Graphic (PIC Format) PR: DR. HALO
DIB Device-Independent Bitmap Graphic PR: MS WINDOWS
DIC Dictionary file
DIF Database PR: VISICALC
DIF Text file ( File Interchange Format)
DIR Dialing directory PR: PROCOMM PLUS
DIS Thesaurus PR: COREL DRAW
DIZ Program description
DL Animations file
DLD PR: LOTUS 1-2-3
DLG Dialog Resource Script PR: MS WINDOWS & SDK
DLL Dynamic Link Library PR: MS WINDOWS / OS/2
DMO Demo
DMP Dump file
DMS Compressed Archive File Amiga
DOC Document, Text file
DOS Text file and DOS Specification Info
DOT Document Template PR: MS WORD FOR WINDOWS
DOT Lines-Definition PR: COREL DRAW
DOX Text file PR: MULTIMATE 4.0
DPR default project PR: BORLAND C++
DRS Display Resource PR: WORDPERFECT FOR WINDOWS
DRV Device driver
DRW Vector graphic PR: MICROGRAFIX DESIGNER
DSK Project Desktop PR: BORLAND C++
DSP GraphicScreen Driver PR: DR. HALO
DSR Driver PR: WORDPERFECT FOR WINDOWS
DTA Data file PR: TURBO PASCAL / PC-FILE
DTF Database PR: Q&A
DVC PR: LOTUS 1-2-3
DVI DeVice Independent document PR: TeX
DVP DESQview Program Information file PR: DESQVIEW
DVP Device parameter file PR: AUTOCAD
DWC Compressed Archive File
DWG Drawing Database PR: AUTOCAD
DXF Drawing Interchange File Format Vector graphic PR: AUTOCAD
DYN PR: LOTUS 1-2-3
E TOP
EEB button bar for Equation Editor PR: WORDPERFECT FOR WINDOWS
EFT High resolution screen characters PR: CHIWRITER
EGA EGA screen characters PR: VENTURA PUBLISHER
ELT Event LisT Text file PR: PROSA
EMS Enhanced Menu System - Configuration PR: PC TOOLS
EMU Emulation PR: IRMA WORKSTATION FOR WINDOWS
ENC Encyclopedia PR: ADW KNOWLEDGE WARE
END Arrow Definition PR: COREL DRAW
ENG Dictionary file engine PR: SPRINT
ENV Environment PR: WORDPERFECT FOR WINDOWS
EPS Printer Font PR: VENTURA PUBLISHER
EPS Encapsulated PostScript Vector graphic PR: ADOBE ILLUSTRATOR
EQN Equation file PR: WORDPERFECT FOR WINDOWS
ERD Entity Relationship Diagram graphic file PR: PROSA
ERM Entity Relationship Diagram model file PR: PROSA
ERR Error Log file
ESH Extended Shell Batch file
EVT EVenT File Scheduler PR: PC TOOLS
EX3 Device driver PR: HARVARD GRAPHICS 3.0
EXC Exclude file from Optimization PR: QEMM
EXC REXX Program File (VM/CMS)
EXE Program
EXT Extension file PR: NORTON COMMANDER
F TOP
F FORTRAN Program File
F Compressed Archive File PR: FREEZE
F77 FORTRAN 77 Program File
FAC Usenix FACE Graphic
FAQ Frequently Asked Questions Text file
FAX Fax Graphic file PR: WINFAX PRO
FC Dictionary file PR: HARVARD GRAPHICS 2.0
FCT Catalog PR: FOXPRO
FD Declarations file PR: MS FORTRAN
FD Field Offsets Compiler PR: DATAFLEX
FEX FocExec PR: FOCUS
FFT DCA/FFT Final Form Text Text file PR: DISPLAYWRITE
FI Interface file PR: MS FORTRAN
FIF Fractal Image Format
FIL Files list Object file PR: dBASE
FIL Overlay PR: WORDPERFECT
FIN Print format Text file PR: PERFECT WRITER / MINCE
FIT FITS Graphic
FKY Macro file PR: FOXPRO
FLB Format library PR: PAPYRUS
FLD Folder PR: CHARISMA
FLI Animation PR: AUTODESK ANIMATOR
FLL Library PR: FOXPRO FOR WINDOWS
FLM Film PR: AUTOCAD
FLT Graphicfilter PR: diverse
FLX Ordered Binder file PR: DATAFLEX
FM1 Spreadsheet file PR: LOTUS 1-2-3 2.x
FM3 Device driver PR: HARVARD GRAPHICS 3.0
FM3 Spreadsheet file PR: LOTUS 1-2-3 3.x
FMB File Manager Button bar PR: WORDPERFECT FOR WINDOWS
FMO Ordered Format file PR: DBASE IV
FMT Format file PR: CLIPPER 5 / dBASE IV / FOXPRO
FMT Style sheet PR: SPRINT
GR2 screen driver PR: MS WINDOWS
GR3 Windows 3.0 screen Grabber
GRA PR: MS FLIGHT SIMULATOR
GRB MS-DOS Shell Monitor
GRF Graph PR: CHARISMA / GRAPH PLUS
GRP Program Manager Group PR: MS WINDOWS
GZ Compressed Archive File PR: GZIP
H TOP
H Header file
HA Compressed Archive File PR: HA
HBK Handbook PR: MATHCAD
HDL Alternate download file listing PR: PROCOMM PLUS
HDR Message Header PR: PROCOMM PLUS
HDR PC-File+ Database Header
HDX Help index
HEX Hex dump
HFI HP Font Info PR: GEM
HGL Graphic (HP Graphics Language)
HH C++ Header
HHH Precompiled Header PR: Power C
HHP Help data PR: PROCOMM PLUS
HLP Help data
HMM Alternate Mail Read option menu PR: PROCOMM PLUS
HOF Hall Of Fame (distinct scores)
HPF HP LaserJet Fonts PR: PAGEMAKER
HPG Vector graphic (HPGL Plotter file)
HPI Fonts information PR: GEM
HPJ Help ProJect PR: MS HELP COMPILER
HPK Compressed Archive File PR: HPACK
HPM Alternate Main menu for privileged users PR: PROCOMM PLUS
HPP C++ Header PR: ZORTECH C++
HQX Compressed Archive File Macintosh ASCII PR: BINHEX
HRM Alternate Main menu for limited/normal users PR: PROCOMM PLUS
HST History PR: PROCOMM PLUS
HTM Hypertext Markup Language (HTML)
HTX Hypertext file
HXM Alternate Protocol Selection menu for all users PR: PROCOMM PLUS
HXX C++ Header
HYC PR: WORDPERFECT
HYD Hyphenation Dictionary file PR: WORDPERFECT FOR WINDOWS
HYP Compressed Archive File PR: HYPER
I TOP
ICL Icon Library PR: PC TOOLS
ICN Icon Program File
ICO Icon PR: MS WINDOWS
ID Disk Identification File
IDF Instruments drivers file
IDX Index
IFF Graphic, Sound (Interchangeable File Format)
IFS ST: HPF.IFS - System file PR: OS/2
IGS IGES-Format
IM8 Sun Raster Graphic
IMG Bitmap Graphic PR: GEM / VENTURA PUBLISHER
IN3 Input Device driver PR: HARVARD GRAPHICS 3.0
INC Include file (diverse Programmer's Language)
IND index PR: DBASE IV
INF Help file (OS/2 Buch)
INF Information Text file (ASCII)
INF Setup file
INI Initialization file
INK Pantone Reference file PR: COREL DRAW
INS PR: WORDPERFECT
INT Borland Interface Units
INT Code page file, collation sequence PR: FOXPRO
INX Index PR: FOXBASE
IO Compressed Archive File PR: CPIO
ION Text program/installation descriptION file ST: DESCRIPT.ION PR: 4DOS & others
IPL Pantone Spot reference palette PR: COREL DRAW
IRS ST: STANDARD.IRS PR: WORDPERFECT
ISD Dictionary file PR: RapidFile
ISH Compressed Archive File PR: ISH
IW Iconware Application PR: ICON AUTHOR
IWA Text file PR: IBM Writing Assistant
IWP Text file (Wang)
J TOP
JAS Graphic
JOB Job file PR: BETA 44
JOR Journal file SQL
JPG Graphic JPEG (Joint Photography Experts Group)
JW Text file PR: JUSTWRITE
JWL Text file Library PR: JUSTWRITE
JZZ Spreadsheet file PR: JAZZ
K TOP
KBD Keyboard layout PR: IRMA WORKSTATION FOR WINDOWS
KBM Keyboard layout
KEX KEDIT Profile file
KEY Keyboard macros
KYB Keyboard layout
L TOP
L LEX Program File
L Link instructions
L LISP Program File
LAB Mailing Labels PR: Q+E For MS EXCEL
LAY Word chart layout PR: APPLAUSE
LBG Label generator PR: DBASE IV
LBL label PR: dBASE IV / dBFAST / CLIPPER 5
LBM Bitmap graphic PR: DELUXE PAINT
LBO Ordered Labels PR: DBASE IV
LBR screen driver PR: LOTUS 1-2-3
LBR Compressed Archive File PR: LU
LBT Label Memo PR: FOXPRO
LBX Label PR: FOXPRO
LCF Linker Control File PR: NORTON GUIDES
LCN Dictionary file PR: WORDPERFECT
LD Long Distance codes PR: TELIX
LD1 Overlay file PR: dBASE
LDB Database file PR: MS Access
LES Learn program (LESson)
LEX Lexicon (Dictionary file)
LFT LaserPrinter Font PR: CHIWRITER
LGO MS Windows Logo Driver PR: MS WINDOWS
LHW Compressed Archive File Amiga PR: LHWARP
LIB Program Library (diverse Programmer's Language)
LIF Compressed Archive File
LIF Logical Interchange Format Data file (Hewlett-Packard)
LIN Line Art PR: AUTOCAD
LJ Text file for HP LJ II Printer
LNK Linker file
LOG Log file
LRF Linker Response File PR: MS C/C++
LRS Language Resource File PR: WORDPERFECT FOR WINDOWS
LSP LISP Program File PR: XLISP
LST List file
LST ST: PACKING.LST List of files on Installation disks PR: MS-DOS and others
LZH Compressed Archive File PR: LHA / LHARC
LZS Compressed Archive File PR: LARC
LZW Compressed Archive File Amiga PR: LHWARP
M TOP
M Function PR: MATLAB
M Macro Sourcecode PR: BRIEF
M PR: MATHEMATICA
M3 ModuleA 3 Program File
M3D 3D AnimationsMacro
MA3 Macro PR: HARVARD GRAPHICS 3.0
MAC Bitmap Graphic PR: MACPAINT
MAC Macro
MAK Make file
MAK Project file PR: VISUAL BASIC
MAN Manual
MAP Colorpalette
MAP Format Data PR: MICROGRAFX PICTURE PUBLISHER
MAP Linker Map file
MAS Master data definition PR: FOCUS
MAT PR: MATLAB
MAX MAX Program File
MB Memo Holder for Database PR: PARADOX
MBK Multiple index Backup PR: DBASE IV
MCC Configuration PR: MATHCAD
MCD Document PR: MATHCAD
MCF Font PR: MATHCAD
MCI MCI Command Set
MCP Printer driver PR: MATHCAD
MCW Text file PR: WORD For MACINTOSH
MD Compressed Archive File PR: MDCD
MDB Database PR: MS ACCESS
MDM Modem definition PR: TELIX
MDX Multiple Index PR: DBASE IV
ME Standard: READ.ME - ASCII Text file
MEB Macro Editor bottom overflow file PR: WORDPERFECT
MED Macro Editor delete save PR: WORDPERFECT
MEM Macro Editor macro PR: WORDPERFECT
MEM Memory file of Variables (Memory) PR: dBASE IV / FOXPRO
MEQ Macro Editor print queue PR: WORDPERFECT
MER Macro Editor resident area PR: WORDPERFECT
MES Macro Editor work space PR: WORDPERFECT
MET Macro Editor top overflow file PR: WORDPERFECT
MET Meta file
MEU Menus (DOS Shell)
MEX MEX file (executable command) PR: MATLAB
MF MetaFont Text file
MGF Font PR: MICROGRAFX
MID MIDI- File PR: MS WINDOWS
MIF MIDI Instrument
MIX Object file PR: POWER C
MK Makefile
MKE Makefile PR: MS WINDOWS SDK
MLB Macro Library PR: SYMPHONY, FOXPRO
MMM Animation
MND Menu Program File PR: AUTOCAD
MNT Menu memo PR: FOXPRO
MNU Menu PR: AUTOCAD / NORTON COMMANDER
MNX compiled menu file PR: AUTOCAD
MNX Menu PR: FOXPRO
MOB Device definitions PR: PEN WINDOWS
MOD Audio file (Amiga)
MOD ModuleA-2 Program File
MOD Windows Kernel Module
MOV Movie
MP PR: Multiplan
MPC Calender PR: MS PROJECT
MPD Mini port driver
MPG MPEG Animation
MPM MathPlan Macro PR: WORDPERFECT
MPP Project file PR: MS PROJECT
MPR Program PR: FOXPRO
MPV View PR: MS PROJECT
MPX Compiler Menu PR: FOXPRO
MRB Multiple Resolution Bitmap Graphic PR: MS C/C++
MRS Macro resource file PR: WORDPERFECT FOR WINDOWS
MS ST: CHKLIST.MS Checksum file for Anti-Virus PR: MS-DOS
MSG MeSsaGe (Message) Text file (ASCII)
MSP Bitmap Graphic PR: MS WINDOWS 2.x PAINT
MST Minispecification PR: PROSA
MST Setup script PR: MS WINDOWS SDK
MSW Text file PR: MS WORD
MTH Math PR: DERIVE
MTW Data file PR: MINITAB
MU Menu PR: QUATTRO PRO
MUS Audio file
MVB Database PR: MS INFO VIEWER
MVF Stop frame file PR: AUTOCAD AUTOFLIX
MVI Movie command file PR: AUTOCAD AUTOFLIX
MXT PR: MS C
N TOP
NB Text file PR: NOTA BENE
NCD Norton Change Directory PR: NORTON COMMANDER
NDX Index PR: dBASE / dBFAST
NET Network Configuration PR: HARVARD GRAPHICS FOR WINDOWS / PARADOX
NEW New info
NG Online-Documentation PR: NORTON GUIDE
NLS National language support - Code Page
NOT Notes PR: IBM BOOKMANAGER
NST Amima MOD Audio file
NTF Notes PR: IBM BOOKMANAGER
NTS Tutorial PR: NORTON
NTX Index PR: CLIPPER 5
NWS Info Text file (latest news) (ASCII)
O TOP
O Object file PR: UNIX
O$$ Outfile PR: SPRINT
OBJ object code
OCX OLE Control Extension
OFF Vector graphic (Object File Format)
OFM Font (Adobe)
OLB Object Library
OLD Backup
OLI Text file (Olivetti)
OPC Job file PR: BETA 44
OPT Optimize PR: QEMM
OPX Organization diagram PR: MS ORGCHART
OUT Output file
OV1 Program file - Overlay
OV2 Program file - Overlay
OV3 Program file - Overlay
OVL Program file - Overlay
OVR Program file - Overlay
P TOP
P PASCAL Program File
P Picture PR: APPLAUSE
PAD Keypad definition PR: TELEMATE
PAK Compressed Archive File PR: PAK
PAL Color palette
PAR Parameter file PR: FRACTINT
PAS PASCAL Program File
PAT Hatch-Pattern PR: AUTOCAD
PAT Vector-Pattern PR: COREL DRAW
PBI Profiler Binary Input PR: MS SOURCE PROFILER
PBM PBM Portable Bit Map Graphic
PBO Profiler Binary Output PR: MS SOURCE PROFILER
PBT Profiler Binary Table PR: MS SOURCE PROFILER
PC Text file IBM PC-specific Info
PC3 Custom palette PR: HARVARD GRAPHICS 3.0
PC8 ASCII Text IBM-8
PCD Graphic (Photo-CD Image)
PCF Profiler Command File PR: MS SOURCE PROFILER
PCH Patch File
PCH PreCompiled Header PR: MS C/C++
PCK pick file PR: TURBO PASCAL
PCL HP-PCL Graphic Data file (HP Printer Control Language)
PCT Bitmap Graphic
PCW Text file PR: PC WRITE
PCX Bitmap Graphic PR: PAINTBRUSH
PDB PR: TACT
PDI PR: MS POWERPOINT
PDR Printer driver
PDR Port driver
PDS PDS Graphic
PDV Printer driver PR: PAINTBRUSH
PEB Program Editor bottom overflow file PR: WORDPERFECT
PED Program Editor delete save PR: WORDPERFECT
PEM Program Editor macro PR: WORDPERFECT
PEQ Program Editor print queue file PR: WORDPERFECT
PER Program Editor resident area PR: WORDPERFECT
PES Program Editor work space file PR: WORDPERFECT
PET Program Editor top overflow file PR: WORDPERFECT
PF Profile file (Monitor, Printer )
PFA Outline Font
PFB Outline Font
PFK Programmable function keys PR: XTREE PRO
PFM Printer outline Font Metric: Font (Adobe Type 1 PostScript)
PFT Printer Font PR: CHIWRITER
PGM PBM Portable Gray Map Graphic
PGP PR: PRETTY GOOD PRIVACY
PH PERL Header
PH Phrase-table PR: MS C/C++, MS HELP COMPILER
PIC Bitmap Graphic
PIF Program Information File PR: MS WINDOWS
PIT Compressed Archive File Macintosh PR: PACKIT
PJT Project memo PR: FOXPRO
PJX Project PR: FOXPRO
PKA Compressed Archive File PR: PKARC
PL Palette PR: HARVARD GRAPHICS FOR WINDOWS
PL PERL Program File
PL3 Chart Palette PR: HARVARD GRAPHICS 3.0
PLB Library PR: FOXPRO
PLC Add-In PR: LOTUS 1-2-3
PLN Spreadsheet file PR: WORDPERFECT FOR WINDOWS
PLT HPGL Plotter file Vector graphic PR: AUTOCAD
PM PM Graphic
PM3 Document PR: PAGEMAKER 3
PM4 Document PR: PAGEMAKER 4
PM5 Document PR: PAGEMAKER 5
PN3 Printer driver PR: HARVARD GRAPHICS 3.0
PNM PBM Portable aNy Map Graphic
PNT Macintosh painting
POP Popup Menu PR: dBASE
PP Compressed Archive File Amiga PR: POWERPACKER
PPD PostScript Printer Description
PPL PolaroidPalettePlus ColorKey Device driver PR: HARVARD GRAPHICS 3.0
PPM PBM Portable Pixel Map Graphic
PPO Preprocessor output PR: CLIPPER 5
PPT PowerPoint-Foils PR: POWERPOINT
PR2 Printer driver PR: DBASE IV
PR2 Presentation PR: ALDUS PERSUASION 2.0
PR3 PostScript Printer driver PR: DBASE IV
PRD Printer driver PR: Diverse
PRE Settings (preferences) PR: MS C/C++
PRF Printer driver PR: DBASE IV
PRF Profiler output
PRG Program File PR: CLIPPER 5 / dBASE IV / dBFAST / FOXPRO
PRJ Project
PRM Parameter PR: Diverse
PRN Text file PR: LOTUS 1-2-3 / SYMPHONY
PRO PROLOG Program File
PRS Printer ReSource file for fonts PR: WORDPERFECT FOR WINDOWS
PRS procedure PR: DBASE IV
PRS ST: PLSAMP.RS PR: HARVARD GRAPHICS
PRT Printer Configuration PR: IRMA WORKSTATION FOR WINDOWS
PRT Printer driver PR: DR. HALO
PRX Compiler Program PR: FOXPRO
PS PostScript (ASCII)
PSF PostScript Printer Font PR: CHIWRITER
PSM Symbol table PR: TURBO PASCAL
PT3 Device driver PR: HARVARD GRAPHICS 3.0
PT3 Template PR: PAGEMAKER 3
PT4 Template PR: PAGEMAKER 4
PT5 Template PR: PAGEMAKER 5
PUB Public Key Ring PR: PRETTY GOOD PRIVACY
PUB Publication PR: VENTURA PUBLISHER
PW Text file PR: PROFESSIONAL WRITE
PWL Password List
PX Primer Database index PR: PARADOX
PY PYTHON script
PYC Compiler PYTHON Script
PZD PR: PIZAZZ PLUS
PZO PR: PIZAZZ PLUS
Q TOP
QAG Quick Access Group PR: NORTON DESKTOP
QBD Keyboard layout PR: IRMA WORKSTATION FOR WINDOWS
QBE Example Query (Query By Example) PR: dBASE IV / QUATTRO PRO
QBO Ordered Query PR: DBASE IV
QEF Query PR: Q+E For MS EXCEL
QEP PR: IRMA WORKSTATION FOR WINDOWS
QLB Quick Library PR: MS C/C++
QLC ST: ATMFONTS.QLC (PostScript Help file)
QPR Relational Query PR: FOXPRO
QPR driver for Printer queue PR: OS/2
QPX Ordered Query PR: FOXPRO
QRS Equation Editor PR: WORDPERFECT FOR WINDOWS
QRT QRT ray tracing Graphic
QRY Query (query) PR: DBASE IV
R TOP
R8 raw Graphic
RAS Sun Raster graphic
RAW RAW RGB 24-bit Graphic
RBF Data file PR: RBASE
RC Resource Compiler Script file PR: BORLAND C++ / MS C++
RDX Data file PR: REFLEX
REC Record file PR: SPRINT
REC Recorded macro PR: MS WINDOWS
REF Cross reference
REG Registration data PR: MS WINDOWS / REGEDIT
REM Annotation
REQ REQuest
RES dBASE Resources PR: DBASE IV
RES Compiler Resources PR: BORLAND C++ / MS C++
REX REXX Program File
REZ Resources
RF Sun raster Graphic
RFT Text file (DCA/RFT Revisable Format Text) PR: IBM DISPLAYWRITE
RI PR: LOTUS 1-2-3
RLB ST: HGW.RLB PR: HARVARD GRAPHICS FOR WINDOWS
RLE Graphic (Run Length Encoded)
RMI MIDI- File
RMK Makefile PR: RMAKE
RND Rendering Slide PR: AUTOCADE AUTOSHADE
ROL Adlib Music (Roland)
RPD Database PR: RAPIDFILE
RPT Report
RR PR: RAILROAD TYCOON
RSL Resources Library PR: PC TOOLS
RSP ReSPonce (Text file and Eingaben)
RTF Rich Text Format Text file
RTF Windows Help file script
RTL Text file
RUN Script Tools - Program PR: PC TOOLS
S TOP
S$$ Temporary Sort file PR: SPRINT
SAM Text file (Samna) PR: AMI PRO 2.x , 3.x
SAV Backup
SB Audio file
SBP DML Program PR: SUPERBASE 4
SC screen driver PR: FRAMEWORK II
SC3 screen driver PR: HARVARD GRAPHICS 3.0
SCC Text file
SCD Graphic (SCODL Scan Conversion Object Description Language)
SCH PR: MS SCHEDULE
SCN Compressed Screen format
SCO High Score (diverse Programs)
SCR Screen Snapshot (diverse Programs)
SCR Screen Saver PR: MS WINDOWS
SCR Fax PR: FAXVIEW
SCR Script
SCT screen PR: FOXPRO
SCT Script Tools - Program File PR: PC TOOLS
SCX screen PR: FOXPRO
SDF System File Format
SEA Compressed Archive File Macintosh
SEC Compressed Archive File
SEC Secret key ring PR: PRETTY GOOD PRIVACY
SEQ Animation (Atari)
SET Configuration (diverse Backups)
SF WPS attribute storage ST: WP_ROOT.SF PR: OS/2
SFI Printer Font (HP LaserJet landscape) PR: VENTURA PUBLISHER
SFL Printer Font (HP LaserJet landscape) PR: VENTURA PUBLISHER
SFP Printer Font (HP LaserJet portrait) PR: VENTURA PUBLISHER
SFT ScreenFont PR: CHIWRITER
SGI Graphic
SH Archive File PR: SHAR
SH3 presentation PR: HARVARD GRAPHICS 3.0
SHB Background file PR: COREL SHOW
SHG Hypergraphic PR: HOTSPOT EDITOR
SHK Compressed Archive File Apple II PR: SHRINKIT
SHM Shell Macro PR: WORDPERFECT
SHR Archive File PR: SHAR
SHW Presentation / Show file PR: HARVARD GRAPHICS 2.0 / COREL SHOW
SIK Backup File
SIM Simulation PR: MS FLIGHT SIMULATOR
SIT Compressed Archive File Macintosh PR: STUFFIT
SL S-Lang Program File
SLB Slide library PR: AUTOCAD
SLC Compiler SALT Script PR: TELIX
SLD Slide PR: AUTOCAD
SLK SYLK (Symbolic Link) PR: MULTIPLAN
SLT SALT Script Application Language for Telix script source PR: TELIX
SM SMALLTALK Program File
SM Text file PR: SAMNA WORD
SMM Macro PR: AMI PRO 2.x, 3.x
SMP Sample
SND Sound file
SNG Song (MIDI)
SNO SNOBOL Program File
SP Compressed Archive File PR: SPLINT
SPC Program PR: MS PULTIPLAN
SPC Temporary File PR: WORDPERFECT FOR WINDOWS
SPD Bitstream Typefaces Font PR: HARVARD GRAPHICS 3.0
SPD Postscript printer mini driver
SPG Glossary PR: SPRINT
SPL Printer -Spool file PR: MS WINDOWS
SPL Printer driver PR: SPRINT
SPL Compressed Archive File PR: SPLINT
SPL SamPLe
SPM ST: WP.SPM PR: WORDPERFECT
SPP Printer file PR: SPRINT
SPR Document letter PR: SPRINT
SPR Generated screen program PR: FOXPRO
SPS screen driver PR: SPRINT
SPT SPITBOL Program File
SPX Compiler screen Program PR: FOXPRO
SQL SQL Data
SQZ Compressed Archive File PR: SQUEEZE
SRC Sourcecode (Source) PR: DATAFLEX and others
SRF Graphic (Sun Raster File)
ST SMALLTALK Program File
STD State Transition Diagram Graphic PR: PROSA
STF Compressed Archive File PR: SHRINKTOFIT
STF Setup Information
STM State Transition Diagram Model PR: PROSA
STR Structure list PR: dBASE
STS Project status info PR: MS C/C++
STY Template n (Style library/sheet)
SUN Graphic (Sun rasterfile)
SUP supplementary Dictionary file PR: WORDPERFECT FOR WINDOWS
SVD Backup file PR: MS WORD
SVG Backup file PR: MS WORD
SVS Backup file PR: MS WORD
SW Audio file (signed word)
SWP Backup file PR: SPRINT
SWP Swap file PR: DOS
SY3 Symbol file PR: HARVARD GRAPHICS 3.0
SYD Backup file PR: MS WINDOWS SYSEDIT.EXE
SYM Symbol file PR: HARVARD GRAPHICS / MS WINDOWS SDK
SYM Symbol table (diverse Compiler)
SYN Synonyms PR: MS WORD 5
SYS System file: Device driver, HardwareConfiguration
SYW Graphic (Symbol) PR: HARVARD GRAPHICS FOR WINDOWS
T TOP
TAG Query Tag Name PR: DATAFLEX
TAH Help file for Turbo Assembler PR: BORLAND C++
TAR Compressed Archive File PR: TAR
TB1 Font PR: BORLAND TURBO C
TB2 Font PR: BORLAND TURBO C
TBK Memo Backup PR: dBASE IV / FOXPRO
TBK Toolbook (Asymetrix ToolBook)
TC Configurations file PR: BORLAND C++ / TURBO C
TCH Help file PR: BORLAND C++ / TURBO C
TD Configurations file PR: TURBO DEBUGGER
TDB Database
TDF Outline Font
TDH Help file Turbo Debugger PR: BORLAND C++
TDK Keyboard record PR: TURBO DEBUGGER
TDS Symbol table PR: TURBO DEBUGGER
TEM Turbo Editor Macro Language PR: BORLAND C++
TEM Template (template) PR: ICON AUTHOR
TEX TeX Text file
TF Configurations file PR: TURBO PROFILER
TFA Area file PR: TURBO PROFILER
TFH Help file Turbo Profiler PR: BORLAND C++
TFS Statistik PR: TURBO PROFILER
TGA Truevision Targa Graphic
THB Graphic (Bitmap)
THM Database der Graphicen PR: MS CLIPART GALLERY
THS thesaurus Dictionary file PR: WORDPERFECT FOR WINDOWS
TIF Tagged Image File Format - Bitmap Graphic
TMF Tagged Font Metric file PR: WORDPERFECT FOR WINDOWS
TMO ZTG global optimizer default output file PR: ZORTECH C++
TMP temporary File
TMS Script PR: TELEMATE
TOC Table Of Contents Text file (ASCII)
TP Configurations file PR: TURBO PASCAL
TP3 Template PR: HARVARD GRAPHICS 3.0
TPH Help file PR: TURBO PASCAL
TPL Resident units PR: TURBO PASCAL
TPL Template PR: HARVARD GRAPHICS 2.0
TPP Protected Mode Units PR: TURBO PASCAL
TPU Turbo Pascal Unit (BGI) PR: TURBO PASCAL
TPW Turbo Pascal Unit (BGI) PR: TURBO PASCAL FOR WINDOWS
TRE Directory Tree PR: PC TOOLS
TRM Terminal settings PR: MS WINDOWS
TRN Translation PR: QUATTRO
TSP Windows Telephony Service Provider
TST Printer -Test file PR: WORDPERFECT FOR WINDOWS
TTF TrueType Font
TUT Tutorial
TX8 DOS-Text
TXT Text file
TYM Time Stamp program PR: PAGEMAKER 4 & 5
U TOP
UB Audio file (unsigned byte)
UI User Interface PR: SPRINT
UL uLAW Audio file
ULD Uploaded files PR: PROCOMM PLUS
UNX Text file - UNIX specific Info
UPD Update file PR: dBASE
UPO Compiled update file PR: dBASE
USP Printer Font US-ASCII enhanced characters PR: PAGEMAKER
USR User Database PR: PROCOMM PLUS / TURBO C++
UU Compressed Archive File ASCII PR: UUENCODE
UUE Compressed Archive File ASCII PR: UUENCODE
UW Audio file (unsigned word)
V TOP
VAL Value (values) PR: dBASE
VAR Variable PR: ICON AUTHOR
VBX Visual Basic eXtension PR: VISUAL BASIC
VC Spreadsheet file PR: VISICALC
VCX Spreadsheet file PR: VISICALC
VEW Viewfile PR: CLIPPER 5
VGA VGA screen driver PR: Diverse
VGA VGA screen characters PR: Diverse
VGR Graphic PR: VENTURA PUBLISHER
VID screen driver PR: WORD
VID Monitor control file PR: MS-DOS Shell
VMF font characteristics PR: VENTURA PUBLISHER
VOC Audio file
VSD Drawing PR:VISIO
VSS Stencil PR:VISIO
VST Truevision Vista Graphic
VST Template PR:VISIO
VUE View PR: dBASE IV / FOXPRO
VW Text file PR: VOLKSWRITER
VWR file viewer file PR: PC TOOLS
VXD Virtual Device driver
W TOP
W Word chart PR: APPLAUSE
W30 Printer Font (AST TurboLaser) PR: VENTURA PUBLISHER
W40 Backup file from MS Windows 95
WAV Waveform Audio file
WBF Windows Batch File
WBK Workbook PR: WORDPERFECT FOR WINDOWS
WCD Macro token list PR: WORDPERFECT FOR WINDOWS
WCM File transmission file PR: MS WORKS
WCM Macro PR: WORDPERFECT FOR WINDOWS
WDB Database PR: MS WORKS
WFN Graphics: Symbols and Fonts PR: COREL DRAW
WFX Data file PR: WINFAX
WID width table PR: VENTURA PUBLISHER
WIN Window PR: dBASE / FOXPRO
WK1 Spreadsheet file PR: LOTUS 1-2-3 2.x / SYMPHONY
WK3 Spreadsheet file PR: LOTUS 1-2-3 3.x
WKB Document PR: WORDPERFECT FOR WINDOWS
WKE Spreadsheet file PR: LOTUS 1-2-3 (Student version)
WKQ Spreadsheet file PR: QUATTRO PRO
WKS Spreadsheet file PR: Lotus 1-2-3 / SYMPHONY / MS Works
WKS Workspace PR: XLISP
WMC Macro PR: WORDPERFECT FOR WINDOWS
WMC Text file PR: WORDMARC
WMF Vector graphic (Windows MetaFile) PR: MS WINDOWS
WN Text file PR: WRITE NOW
WNF Outline Font PR: COREL DRAW
WOA Swap file PR: MS WINDOWS
WP Text file PR: WORDPERFECT 4.2
WP5 Text file PR: WORDPERFECT 5
WPD screen driver PR: WORDPERFECT
WPF Text file PR: WORDPERFECT
WPG WordPerfect Graphic Bitmap PR: DRAWPERFECT
WPK Macros PR: WORDPERFECT FOR WINDOWS
WPM Macros PR: WORDPERFECT
WPS Text document PR: MS WORKS
WQ! Compressed Spreadsheet file PR: QUATTRO PRO
WQ1 Spreadsheet file PR: QUATTRO PRO
WR1 Spreadsheet file PR: SYMPHONY
WRD Template PR: CHARISMA
WRI Text file PR: WINDOWS WRITE
WRK Spreadsheet file PR: SYMPHONY 1.0
WRP Compressed Archive File Amiga PR: WARP
WRS Windows Printer driver PR: WORDPERFECT FOR WINDOWS
WS Text file PR: WORDSTAR 5.0+6.0
WS2 Text file PR: WORDSTAR 2000
WSD Data file PR: WORDSTAR
WST Text file PR: WORDSTAR
X TOP
X LEX Program File
X01 Secondary index PR: PARADOX
X02 Secondary index PR: PARADOX
X03 Secondary index PR: PARADOX
X04 Secondary index PR: PARADOX
X05 Secondary index PR: PARADOX
X06 Secondary index PR: PARADOX
X07 Secondary index PR: PARADOX
X08 Secondary index PR: PARADOX
X09 Secondary index PR: PARADOX
XAB Address Book PR: XENIX MAIL
XBM Bitmap Graphic
XFN Printer Font PR: VENTURA PUBLISHER
XFT 24 Pin Printer Font PR: CHIWRITER
XLA Addin: Macro PR: MS EXCEL
XLB PR: MS EXCEL
XLC Chart Diagram PR: MS EXCEL
XLL Excel Dynamic Link Library PR: MS EXCEL
XLM MacroTemplate PR: MS EXCEL
XLS Spreadsheet file PR: MS EXCEL
XLT MasterTemplate PR: MS EXCEL
XLT Translation table PR: LOTUS 1-2-3 / SYMPHONY
XLW Workspace PR: MS EXCEL
XPM Graphic
XQT Macro sheet PR: SUPERCALC
XRF Cross reference
XY Text file PR: XY WRITE
XY3 Text file PR: XYWRITE III
XYW Text file PR: XYWRITE III
Y TOP
Y Compressed Archive File Amiga PR: YABBA
Y01 Secondary index PR: PARADOX
Y02 Secondary index PR: PARADOX
Y03 Secondary index PR: PARADOX
Y04 Secondary index PR: PARADOX
Y05 Secondary index PR: PARADOX
Y06 Secondary index PR: PARADOX
Y07 Secondary index PR: PARADOX
Y08 Secondary index PR: PARADOX
Y09 Secondary index PR: PARADOX
Z TOP
Z Compressed Archive File ASCII PR: COMPRESS
ZIP Compressed Archive File PR: PKZIP
ZOM Compressed Archive File Amiga PR: ZOOM
ZOO Compressed Archive File PR: ZOO
ZVD ZyXEL Voice file PR: Z-FAX
Disclaimer: The author cannot guarantee completeness of this ever-growing list, nor exacting accuracy. It is believed to be correct. The list is intended as a general reference for identifying the one-letter to three-letter extensions on file names. As such, there are no warrantees or guarantees, express or implied, concerning the use of this material.
Please send corrections and additions to getinfo@thereference.com
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