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AGHBBs File
Format
EVERY FILE
FORMAT IN THE
WORLD ------------------------------
A Object code library
AAM Authorware shocked file AAS Authorware
shocked packet ABF Adobe Binary Screen Font ABK
Corel Draw AutoBackup ACE Compression file
format associated with a program called The Ace
Archiver ACL Corel Draw 6 keyboard accelerator
ACM Used by Windows in the system directory ACP
Microsoft Office Assistant Preview file ACR
American College of Radiology file format ACT
Microsoft Office Assistant Actor file ACV OS/2
drivers that compress and decompress audio data AD
After Dark screensaver ADA Ada source text
(non-GNAT) ADB Ada source text body (GNAT) ADB
Appointment database used by HP 100LX organizer ADD
OS/2 adapter drivers used in the boot process ADF
Amiga Disk File ADI AutoCAD Device-Independent
binary plotter format ADM After Dark MultiModule
screensaver ADP Used by FaxWorks to do setup for fax
modem interaction ADP Astound Dynamite file ADR
After Dark Randomizer screensaver ADS Ada
source text specification (GNAT) AFM Adobe font
metrics AF2 ABC Flowchart file AF3 ABC
Flowchart file AI Adobe Illustrator drawing AIF,
AIFF Audio Interchange File, a sound format used by
Silicon Graphics and Macintosh applications AIFC
Similar to AIF (compressed) AIFF Similar to
AIF AIM AOL Instant Messenger Launch AIS
ACDSee Image Sequence file AIS Velvet Studio
Instruments AKW Contains all A-keywords in the
RoboHELP Help project Index Designer not associated
with topics ALAW European telephony format audio
ALB JASC Image Commander album ALL Arts
& Letters Library AMS Velvert Studio music
module (MOD) file AMS Extreme's Tracker module
format ANC Canon Computer Pattern Maker file that is
a selectable list of pattern colors ANI
Animated Cursor ANS ANSI text ANT
saved game file in the original SimAnt for Windows
API Application Program Interface file; used by
Adobe Acrobat APR Lotus Approach 97 file APS
Microsoft Visual C++ file ARC LH ARC (old
version) compressed archive ARI Aristotle audio file
ARJ Robert Jung ARJ compressed archive ART
Xara Studio drawing ART Canon Crayola art file
ART Clip Art file format ART Another Ray
Tracer format ART Used by AOL to designate files
compressed using the Johson-Grace compreession algorithm
ASA Microsoft Visual InterDev file ASC
ASCII text ASC PGP armored encrypted file
ASD WinWord AutoSave ASE Velvet Studio
sample ASF Microsoft Advanced Streaming Format file
ASM Assembler language source file ASO
Astound Dynamite Objects ASP Active Server
Page (an HTML file containing a Microsoft
server-processed script) ASP Procomm Plus
setup and connection script ASP Astound Presentation
file AST Astound multimedia file AST
Claris Works "assistant" file ASV DataCAD
Autosave file ASX Cheyenne Backup script ASX
Microsoft Advanced Streaming Redirector file ASX
Video file ATT AT&T Group 4 bitmap AU
Sun/NeXT/DEC/UNIX sound file AU Audio U-law
(pronounced mu-law) file format AVB Inculan
Anti-Virus virus infected file AVI Microsoft Audio
Video Interleaved file format for Windows movie AVR
Audio Visual Research file format AVS
Application Visualization System format AWD
FaxView document AWR Telsis file extension
format for digitally stored audio. AXX ARJ
compressed files from a multi-volume archive (xx = a number
from 01 to 99) A3M unpackaged Authorware
MacIntosh file A4M unpackaged Authorware MacIntosh
file A4P Authorware file packaged without
runtime A3W unpackaged Authorware windows file
A4W unpackaged Authorware windows file A5W
unpackaged Authorware windows file ALAW
European telephony format audio ALB JASC Image
Commander album ALL Arts & Letters Library
AMS Velvert Studio music module (MOD) file AMS
Extreme's Tracker module format ANC Canon
Computer Pattern Maker file that is a selectable list of
pattern colors ANI Animated Cursor ANS
ANSI text ANT saved game file in the original
SimAnt for Windows API Application Program Interface
file; used by Adobe Acrobat APR Lotus Approach 97
file APS Microsoft Visual C++ file ARC LH
ARC (old version) compressed archive ARI Aristotle
audio file ARJ Robert Jung ARJ compressed archive
ART Xara Studio drawing ART Canon Crayola
art file ART Clip Art file format ART
Another Ray Tracer format ART Used by AOL to
designate files compressed using the Johson-Grace
compreession algorithm ASA Microsoft
Visual InterDev file ASC ASCII text ASC
PGP armored encrypted file ASD WinWord
AutoSave ASE Velvet Studio sample ASF
Microsoft Advanced Streaming Format file ASM
Assembler language source file ASO Astound
Dynamite Objects ASP Active Server Page (an HTML
file containing a Microsoft server-processed script)
ASP Procomm Plus setup and connection script ASP
Astound Presentation file AST Astound
multimedia file AST Claris Works "assistant" file
ASV DataCAD Autosave file ASX Cheyenne
Backup script ASX Microsoft Advanced Streaming
Redirector file ASX Video file ATT
AT&T Group 4 bitmap AU Sun/NeXT/DEC/UNIX
sound file AU Audio U-law (pronounced mu-law) file
format AVB Inculan Anti-Virus virus infected file
AVI Microsoft Audio Video Interleaved file format
for Windows movie AVR Audio Visual Research file
format AVS Application Visualization System format
AWD FaxView document AWR Telsis file
extension format for digitally stored audio. AXX
ARJ compressed files from a multi-volume archive (xx = a
number from 01 to 99) A3M unpackaged
Authorware MacIntosh file A4M unpackaged Authorware
MacIntosh file A4P Authorware file packaged without
runtime A3W unpackaged Authorware windows file
A4W unpackaged Authorware windows file A5W
unpackaged Authorware windows file
BAK Backup file BAS
BASIC code BAT Batch file BDF
extention for a program called West Point Bridge
Designer BFC Windows 95 Briefcase document BG
Backgammon for Windows game BGL from Microsoft
concerning scenery files from the well known Flight
Simulator BI Binary file BIF
GroupWise initialization file BIFF XLITE 3D
file format BIN Binary file BK and BK$ Sometimes
used to denote backup versions BKS An IBM
BookManager Read bookshelf BMK A bookmark file
BMP Windows or OS/2 bitmap BM1 Apogee
BioMenace data file BOOK Adobe FrameMaker Book
BOX A mailbox in Notes BPL Borland Delphi
4 packed library BQY BrioQuery file BRX A
file for browsing an index of multimedia options BSC
MS Developer Studio (MSDev) browser informatio file
BSP Quake map BS1 Apogee Blake Stone data
file BS_ Microsoft Bookshelf Find Menu shell
extension BTM Batch file used by Norton Utilities
BUD Backup disk for Quicken BUN CakeWalk
Audio Bundle file (a MIDI program) BW SGI Black and
White image file BYU A file in a Movie BYU format
B4 Helix Nuts and Bolts file
C C code C01
Typhoon wave files CAB Microsoft cabinet file
(program files compressed for software distribution)
CAD used by the drafting program "Drafix Cad">by
Softdesk CAL CALS Compressed Bitmap CAL
Calendar schedule data CAM Casio camera format
CAP Compressed music file format CAS
Comma-delimited ASCII file CAT IntelliCharge
categorization file used by Quicken CB Microsoft
clean boot file CBI Column binary formatted file
(used in IBM mainframe systems) CCA cc:mail CCB
Visual Basic Animated Button configuration CCF
Multimedia Viewer configuration file used in OS/2
CCH Corel Chart CCM Lotus CC:Mail "box"
(for example, INBOX.CCM) CCO CyberChat data file
CCT Macromedia Director Shockwave cast CDA
CD Audio Track CDF Microsoft Channel
Definition Format file CDF Collider Detector at
Fermilab file CDI Phillips Compact Disk Interactive
format CDR Core Draw drawing CDR Raw
Audio-CD data CDT Corel Draw template CDX
Corel Draw compressed drawing CDX Microsoft's
Visual Foxpro Index CEL CIMFast Event Language file
CER Certificate file (MIME x-x509-ca-cert) CFB
Comptons Multimedia file CFG Configuration
file CFM Cold Fusion template files CGI
Common Gateway Interface script file CGM
Computer Graphics Metafile CH OS/2
configuration file CHK File fragments saved by
Windows Disk Defragmenter or ScanDisk CHM Compiled
HTML file CHR Character Sets (Font files) CHP
Ventura Publisher chapter CHT ChartViewer file
CHT Harvard Graphics vector file CIL Clip
Gallery download package CIM Sim City 200 file
CIN OS/2 change control file that tracks changes to
an INI file CK1 iD/Apogee Commander Keen 1 data file
CK2 iD/Apogee Commander Keen 2 data file CK3
iD/Apogee Commander Keen 3 data file CK4
iD/Apogee Commander Keen 4 data file CK5
iD/Apogee Commander Keen 5 data file CK6
iD/Apogee Commander Keen 6 data file CLASS
Java class CLL Crick Software Clicker File
CLP Windows Clipboard file CLS Visual
Basic Class Module CMD Command file for Windows NT
(similar to a DOS .BAT file), OS/2 CMD DOS CP/M
command file CMD dBase-II program file CMF
Corel Metafile CMP JPEG Bitmap CMP
Address document CMV Corel Move animation
CMX Corel Presentation Exchange image CNF
Configuration file used by Telnet, Windows, and other
applications with varying internal formats CNM
Windows application menu options and setup file CNQ
Compuworks Design Shop file CNT Windows (or
other) system content files for the help index and
other purposes COB trueSpace2 object
COD Microsoft C compiler output as displayable
machine language/assembler with original C as
comments COM Command file (program) CPD
Corel PrintOffice file (drawing) CPD Fax Cover
document CPE Fax Cover document CPI
Microsoft MS-DOS code page information file CPL
Control Panel extension CPL Corel colour
palette CPO Corel Print House file CPP C++
code CPR Corel Presents Presentation CPT
Corel Photo-Paint image CPX Corel Presentation
Exchange Compressed drawing CRD Cardfile file
CRP Corel Presents Run-Time Presentation CRT
Certificate file CSC Corel Script CSP
PC Emcee On-Screen image CSS Cascading Style
Sheet file (MIME) CST Macromedia Director "Cast"
(resource) file CSV Comma-separated values file
CT Scitex CT Bitmap CT A graphic file
associated with the Paint Shop Pro Graphic Editor CTL
Used in general to mean a file containing control
information. FAXWorks uses it to keep information
about each fax sent and received. CUE Microsoft Cue
Cards data CUR Windows Cursor CUT Dr Halo
bitmap CV Corel Versions archive CV
Microsoft CodeView information screen CWK
Claris Works data file CWS Claris Works
template CXT Macromedia Director protected (not
editable) "Cast" (resource) file CXX C++ source code
file
DAT Data file DAT
WordPerfect Merge Data DAT Extension used for
some MPEG formats DB Borderland's Paradox 7 tables
DBC Microsoft's Visual Foxpro Database container
DBF Aston-Tate dBASE database DBX DataBeam
image DBX Microsoft's Visual Foxpro Table DCM
DCM modle format DCR Shockwave file DCS
Desktop Color Separation file DCT Microsoft's
Visual Foxpro Database container DCU Delphi compiled
unit file DCX Microsoft's Visual Foxpro Database
container DCX Fax image (based on PCX) DCX
Macros DC5 DataCAD Drawing files DDF
BTRIEVE database DDIF Digital Equipment or
Compaq format. Used for storing images and their
word processing documents DEF SmartWare II data file
DEF C++ Definition DEFI Oracle 7
de-install script DEM A file with USGS standards for
Digital Elevation Models DER Certificate file
DEWF Macintosh SoundCap/SoundEdit recorded
instrument format DGN Microstation95 CAD drawing
file DIB Device-Independent Bitmap DIC
Dictionary DIF Data Interchange Format
spreadsheet DIG Digilink format DIG Sound
Designer I audio file DIR Macromedia Director file
DIZ Description file DLG C++ Dialogue
Script DLS DownLoadable Sound DLL
Dynamic-Link Library DMF X-Trakker music
module (MOD) file DOC FrameMaker or FrameBuilder
document DOC WordStar document DOC
WordPerfect document DOC Microsoft Word
document DOC A DisplayWrite document DOT
Microsoft Word document Template DPL Borland
Delphi 3 packed library DPR Borland Delphi project
header file DRAW Acorn's object-based vector image
file DRV Driver DRW Micrografx
Designer/Draw DSF Micrografx Designer v7.x DSG
DooM saved game DSM Dynamic Studio music
module (MOD) file DSP Microsoft Developer Studio
project DSQ Corel QUERY file DST
Embroidery machines graphics file DSW
Microsoft Developer Studio workspace DTD SGML
Document Type Definition (DTD) file DTED Digital
terrain elevation data (geographic data format) DTM
DigiTrakker module DTF Symantec Q&A
relational database data file DUN Microsoft Dial-up
Networking Export file DV Digital video file (MIME)
DWD DiamondWare digitized file DWG Autocad
Drawing files DWG AutoCAD drawing, or older Generic
CADD drawing format DXF Drawing Interchange
(eXchange) format,a text representation of the
binary DWG format DXF Data Exchange File DXR
Macromedia Director protected (not editable) movie file
EDA Ensoniq ASR disk image
EDE Ensoniq EPS disk image EDD Element
Definition Document (FrameMaker+SGML documents) EDK
Ensoniq KT disk image EDQ Ensoniq SQ1/SQ2/KS32
disk image EDS Ensoniq SQ80 disk image EDV
Ensoniq VFX-SD disk image EFA Ensoniq ASR file
EFE Ensoniq EPS file EFK Ensoniq KT file
EFQ Ensoniq SQ1/SQ2/KS32 file EFS Ensoniq
SQ80 file EFV Ensoniq VFX-SD file EMD ABT
Extended MoDule EMF Enhanced Windows Metafile
EML Microsoft Outlook Express mail message (MIME RFC
822) ENC Encore file ENFF Neutral File
Format extension EPHTML Enhanced Perl-parsed HTML
EPS Encapsulated PostScript image ER1
ERWin file ERR Stores the error messages that
result when the RoboHELP Help Compiler attempts to
compile the source files of a Help system ERX ERWin
file ESPF Encapsulated PostScript Files ESPS
ESPS audio files EUI Ensoniq ESP family
compacted disk image EVY Envoy document EWL
Microsoft Encarta document EXC Microsoft Word
Exclusion Dictionary EXE Executable file (program)
F FORTRAN file F2R
Farandoyle linear module format F3R Farandoyle
blocked linear module format F77 FORTRAN file
F90 FORTRAN file FAR Farandole Composer
music module (MOD) file FAV Microsoft Outlook
navigation bar FAX FAX Type image FBK
Navison Financials Backup FCD Virtual CDROM
FDB Navison Financials Database FDF Adobe
Acrobat Forms Document file FEM CADRE Finite Element
Mesh file FFA MS fast find file FFF GUS
PnP bank file format FFL MS fast find file FFO
MS fast find file FFT Final Form Text (part of
IBM's DCA) FFX MS fast find file FH3 Aldus
Freehand 3 drawing FIF Fractal image file FIG
A file format used by REND386/AVRIL FITS CCD
camera image FITS Flexible Image Transport System
FLA Macromidia Flash movie FLC AutoDesk
FLIC animation FLF Corel Paradox Delived form
FLF Navison Financials License file FLI
AutoDesk FLIC animation FLT Corel filter
FLF An OS/2 driver file FLT StarTrekker
music module (MOD) file FLT A file format use in
MulitGen Inc.'s Open Flight FM Adobe FrameMaker
Document FMB Oracle binary source code for form,
version 4.0 and later FML File Mirror List
(GetRight) FMT Oracle text format of form, version
4.0 and later FMT Microsoft Schedule+ print file
FMX Oracle executable form, version 4.0 and later
FND Microsoft Explorer Saved Search file (Find
applet) FNG Font group file (Font Navigator) FNK
FunkTracker module format FOG Fontographer
font FON System font FOR FORTRAN file
FOT Font-related file FP FileMaker Pro
file FP1 Flying Pigs for Windows data file FP3
FileMaker Pro file FPT FileMaker Pro file
FPT Microsoft FoxPro memo fields FPX
FlashPix bitmap FRM Form FRM
FrameMaker or FrameBuilder document FRM Oracle
executable form version 3.0 and earlier FRM Visual
Basic form FRM WordPerfect Merge form FRM
Datacad Symbol Report file FRX Visual Basic
form stash file FRX Microsoft FoxPro report file
FRT Mirosoft FoxPro report file FSF fPrint
Audit Tool file format FSL Borderland's Paradox 7
forms FSL Corel Paradox Saved form FSM
Farandoyle Sample format FT Lotus Notes Full
Text index FTG Full-text Search Group file resulting
from using Find in the Windows Help system. Can be
erased; will be rebuilt when needed. FTS Full-Text
Search index file resulting from using Find in the Windows
help system FW2 Framework II
FW3 Framework III file FW4 Framework IV file
FXP Microsoft FoxPro compiled source file
FZB Casio FZ-1 Bank dump FZF Casio FZ-1 Full
dump FZV Casio FZ-1 Voice dump
G721 Raw CCITT G.721 $bit
ADPCM format data G723 Raw CCITT G.723 3 or 5bit
ADPCM format data GAL Corel Multimedia Manager album
GCD Generic (TM) CADD drawing (later versions)
GCP Ground Control Point file used in image
processing of remote sensing data often to form map
projections. CHIPS (CopenHagen Image Processing
System) uses these files. GDB InterBase
database file GDM Bells, whistles, and sound boards
module format GED GEDCOM genealogical data file, a
popular format for recording and exchanging
genealogical data GED Graphic Environment Document
(drawing) GEM GEM metafile
GEN Ventura-Generated text file GetRight GetRight
Unfinished-Download file GFC Patton&Patton
Flowcharting 4 flowchart file GFI Genigraphics
Graphics Link presentation GFX Genigraphics Graphics
Link presentation GID Windows 95 global index file
(containing help status) GIF CompuServe bitmap
GIM Genigraphics Graphics Link presentation
GIX Genigraphics Graphics Link presentation
GKH Ensoniq EPS family disk image file
GKS Gravis GripKey document GL An animation
format GNA Genigraphics Graphics Link presentation
GNT Generated Code, an executable code in a Micro
Focus proprietary format GNX Genigraphics Graphics
Link presentation GRA Microsoft Graph
GRD Grid file, used in image processing of remote
sensing data often to form map projections. CHIPS
(CopenHagen Image Processing System) uses these
files GRF Grapher (Golden Software) graph file
GRP Program Manager Group GSM Raw GSM 6.10
audio stream GSM Raw 'byte aligned' GSM 6.10 audio
stream GSM US Robotics voice modums GSM w.o.
header/VoiceGuide/RapidComm GSM US Robotics voice
modums GSM w. header/QuickLink GTK Graoumftracker
(old) music module (MOD) file GT2 Graoumftracker
(new) music module (MOD) file GWX Genigraphics
Graphics Link presentation GWZ Genigraphics Graphics
Link presentation GZ Unix Gzip compressed file
H C program header
HCOM Sound Tools HCOM format HDF A file in
Hierarchical Data Format HED HighEdit document
HEL Microsoft Hellbender saved game
HEX Macintosh BinHex 2.0 file HGL HP
Graphics Language drawing HH Map file. Contains topic
IDs and map numbers for each of the topics in a Help
system. Allows the running application to send the user
the appropriate context-sensitive help topic
HLP Help file HLP DataCAD Windows Help file
HOG Lucas Arts Dark Forces WAD file
HPJ Visual Basic Help Project HPP C++
program header HQX Macintosh BinHex 4.0 file
HST History file HT HyperTerminal
HTM Hypertext document HTML Hypertext
document HTT Microsoft Hypertext Template
HTX Extended HTML template HXM Descent2 HAM
file extension
ICA Citrix file
ICB Targa bitmap ICC Kodak printer format
ICL Icon Library file (an industry standard)
ICM Image Color Matching profile file
ICO Windows Icon IDB MSDev 'intermediate'
file IDD MIDI Instrument Definition IDF MIDI
Instrument Definition (Windows 95 required file)
IDQ Internet Data Query file IDX Microsoft
FoxPro relational database index file IDX Symantec
Q&A relational database index file IDX Microsoft
Outlook Express file IFF Interchange Format Files,
Amiga ILBM IGES Initial Graphics Exchange
Specification file IGF Inset Systems metafile
IIF QuickBooks for Windows interchange file
ILBM A bitmap (graphic image) file
IMA WinImage file IMG GEM image
INC Assembler language or Active Server include file
INF Information file INI Initialization file
INI MWave DSP synth's mwsynth.ini GM-setup
INI Gravis UltraSound bank setup INP Oracle
source code for form, version 3.0 and earlier
INRS INRS-Telecommunications audio
INS InstallShield install script
INS X-Internet sign-up file INS Ensoniq EPS
family instrument INS Sample Cell/II MAC/PC
instruments INT Intermediate Code, an executable code
produced when a source program is syntax-checked
IOF Findit document IQY Microsoft Internet
Inquiry file ISO Lists the files on a CD-ROM; based
on the ISO 9660 CD-ROM file system standard
ISP X-Internet sign-up file
IST Digitaltracker instrument file
ISU InstallShield uninstall script
IT Impulse Tracker music module (MOD) file
ITI Impulse Tracker instrument ITS Impulse
Tracker sample ITS Internet document set (possibly a
Microsoft file) IV A file format use in Open Inventor
IW Idlewild screensaver
J62 Ricoh camera format
JAR Java ARchive file (a compressed file for applets
and related files) JAVA Java source code
JBF Paint Shop Pro image browser file
JFF JPEG file JIF JPEG file
JFIF JPEG file JMP SAS JMPDiscovery
chart-to-statistics file JN1 Epic MegaGames Jill of
the Jungle data file JPE JPEG file JPEG JPEG
compressed bitmap JPG JPEG bitmap
JS JavaScript source code JSP A HTML page
containing a reference to a Java servlet JTF JPEG
bitmap
K25 Kurzweil 2500 sample
KAR Karaoke MIDI file (text+MIDI) KDC Kodak
Photo-Enhancer KEY DataCAD Icon toolbar file
KFX KoFax Group 4 image KIZ Kodak digital
postcard files KKW Contains all K-keywords in the
RoboHELP Help project Index Designer not associated
with topics KMP Korg Trinity KeyMaP file
KQP Konica camera native files KR1 Kurzweil
2000 sample (multi-floppy) KRZ Kurzweil 2000 sample
KSF Korg Trinity Sample File KYE Kye game
data
LBM Deluxe Paint bitmap
LBT Microsoft FoxPro labels LBX Microsoft
FoxPro labels LDB Microsoft Access lock file
LDL Corel Paradox Delivered library
LEG Legacy document LES Logitech
Entertainment system game profiles (same as REG file)
LFT 3D Studio (DOS) loft file LHA Alternate
file suffix for LZH LIB Library LIN DataCAD
Line type file LIS Output file produced by a
Structured Query Reporting (SQR) program LLX Laplink
Exchange Agent LNK Windows shortcut file
LOG Log file LPD Helix Nuts and Bolts file
LRC Intel Video Phone file LSL Corel Paradox
Saved library LSP AutoLISP, CommonLISP, and othe LISP
language files LST List file LU ThoughtWing
Library Unit file LVL Parallax Software's Miner
Descent/D2 Level Extension LWLO Lightwave Layered
Object file LWOB Lightwave Object file
LWP Lotus Wordpro 96/97 file LWSC Lightwave
Scene file LYR DataCAD Layer file LZH LH ARC
compressed archive LZS Skyroads data file
M1V MPEG-related file (MIME
type 'mpeg') M3D Corel Motion 3D animation
M3U MPEG URL (MIME audio file) MAT Matlab
variables binary file MAC MacPaint image
MAD Microsoft Access module MAF Microsoft
Access Form MAG A graphics file format found in some
Japanese files MAGIC Magic Mail Monitor configuration
file MAK Visual Basic or MS Visual C++ Project
MAM Microsoft Access Macro MAN Unix Manual
page output MAP Map file MAP Duke Nukem 3D
WAD game file MAQ Microsoft Access Query
MAR Microsoft Access Report MAS Lotus
Freelance Graphics Smartmaster file MAT Microsoft
Access Table MAUD MAUD sample format MAX A
file format which repesents a scene in KINETIX's 3D Studio MAX
MAX Paperport file MAX OrCAD layout file
MAZ Hover maze data MAZ A file format use by
Division's dVS/dVISE MB1 Apogee Monster Bash data
file MBOX Berkeley Unix mailbox format
MBX Extension Microsoft Outlook adds to saved email,
Eudora mailboxes MCC Dialer10 calling card
MCC Dialer10 calling card MCR DataCAD
Keyboard macro file MCW Microsoft Word for Macintosh
document MDA Microsoft Access add-in
MDA Microsoft Access workgroup for version 2
MDB Microsoft Access database MDE Microsoft
Access MDE file MDL Digital Tracker music module
(MOD) file MDL Quake model file
MDN Microsoft Access blank database template
MDW Microsoft Access Workgroup MDZ Microsoft
Access wizard template MED Music Editor, OctaMED
music module (MOD) file MER Format for interchanging
spreadsheet/database data; recognized by Filemaker,
Excel, and others MET Presentation Manager metafile
MGF A file in a Materials and Geometry Format
MHTM MHTML document (MIME) MHTML MHTML
document (MIME) MI Miscellaneous
MIC Microsoft Image Composer file MID MIDI
music MIF Adobe FrameMaker Interchange Format
MIFF Machine Independent Format File MIM A
multipart file in the Multi-Purpose Internet Mail Extensions
(MIME) format; often created as the result of
sending e-mail with attachments in AOL. The files in
a multipart MIM file can be "opened" (unarchived and
separated into individual files) using Winzip or a similar
program. MIME See MIM. MLI A file in 3D
Studio's Material-Library format MME A multipart file
in the Multi-Purpose Internet Mail Extensions (MIME)
format; often created as the result of sending
e-mail with attachments in AOL. The files in a
multipart MME file can be "opened" (unarchived and
separated into individual files) using Winzip or a similar
program. MMF Meal Master Format, a recipe catologing
format MMF Microsoft Mail File MMM Microsoft
Multimedia Movie MMP Mindmapor MindManager file
MN2 Descent2 Mission File MND , MNI
Mandelbrot for Windows MNG Multi-image Network
Graphics MNT Microsoft FoxPro menus
MNX Microsoft FoxPro menus MOD FastTracker,
StarTrekker, Noise Tracker (etc.) music module file
MOD Microsoft Multiplan spreadsheet
MOD Amiga/PC tracker module MOV QuickTime
for Windows movie MP2 MPEG Audio Layer 2
MP3 MPEG Audio Layer 3 (AC3)
MPA MPEG-related file (MIME type 'mpeg')
MPE MPEG animation MPG MPEG animation
MPP Microsoft Project file MPP CAD drawing
file format MPR Microsoft FoxPro menus (compiled)
MP2 MPEG Audio Layer 2 file (MIME video file)
MP3 MPEG Audio Layer 3 (AC3) file MRI MRI
Scan MSA Magic Shadow Archive
MSDL Manchesters Scene Description Language
MSG Microsoft Mail message MSN Microsoft
Network document MSN Descent Mission File
MSP Microsoft Paint bitmap MTM MultiTracker
music module (MOD) file MUL Online game called Ultima
online MUS Music MUS10 Mus10 audio
MVB Microsoft Multimedia Viewer file
MWP Lotus Wordpro 97 Smartmaster file
NAN Nanoscope files (Raw
Grayscale) NAP NAP Metafile Vector image
netCDF network Common Data Form
NCB Microsoft Developer Studio file
NCD Norton Change Directory NCF Netware
Command File NCF Lotus Notes internal clipboard
NDO 3D low-polygon modeler, Nendo
NFF Neutral File Format NIL Norton Icon
Library file (EasyIcons-compatible) NIST NIST Sphere
audio NLB Oracle 7 data NLM Netware Loadable
Module NLU Norton Live Update E-Mail Trigger file
NSF Lotus Notes database NS2 Lotus Notes
database (version 2) NST Noise Tracker music module
(MOD) file NTF Lotus Notes database template
NWC Noteworthy Composer song file
NWS Microsoft OutlookExpress news message (MIME
RFC822)
O01 Typhoon voice file
OBD Microsoft Office binder template
OBD Microsoft Office Binder OBJ Object file
OBZ Microsoft Office Binder Wizard
OCX Microsoft Object Linking and Embedding custom
control ODS Microsoft Outlook Express mailbox file
(?) OFF 3D mesh Object File Format
OFN Microsoft Office FileNew file
OFT Microsoft Outlook template OKT Oktalyzer
music module (MOD) file OLB OLE Object Library
OLE OLE object OOGL Object Oriented Graphics
Library OPL Organiser Programming Language source
file - Psion/Symbian OPO OPL output executable file
OPT Microsoft Developer Studio file OPX OPL
extension DLL ORC Oracle 7 script ORG Lotus
Organiser file OR2 Lotus Organiser 2 file
OR3 Lotus Organiser 97 file ORA Oracle 7
configuration OSS Microsoft Office Search file
OST Microsoft Exchange/Outlook Offline file
OTL Super NoteTab template file (Fookes)
P10 Tektronix Plot 10
drawing P65 Pagemaker 6.5 file P7C Digital
ID file (MIME) PAB Microsoft Personal Address Book
PAC SB Studio II package PAK Quake WAD file
PAL A compressed file PAS Pascal source code
(Borland) PAT DataCAD Hatch pattern file
PAT Corel Draw pattern PAT Advanced Gravis
Ultrasound/Forte tech. Patch PBD PowerBuilder Dynamic
library, an alternative to a native DLL PBF Turtle
Beach Pinnacle Bank File PBK Microsoft Phonebook
PBL PowerBuilder Library used in the PowerBuilder
development environment PBM Portable bitmap
PBR PowerBuilder Resource PCD Kodak Photo-CD
image PCD P-Code compiled test scripts as in
Microsoft Tst and Microsoft Visual Test
PCE Maps Eudora mailbox names to DOS filenames
PCL Hewlett-Packard Printer Control Language file
(printer-ready bitmap) PCM Audio file format
PCM OKI MSM6376 synth chip PCM format
PCP Symantec Live Update Pro file PCS PICS
animation PCT Macintosh PICT drawing
PCX ZSoft PC Paintbrush bitmap PDF Adobe
Acrobat Portable Document Format or Netware Printer Definition
File PDB 3Com Palmpilot database file
PDF Package Definition File from Microsoft Systems
Management Server Verifies installed packages when
performing an inventory scan of a client
PDQ Patton&Patton Flowcharting PDQ Lite file
PF Aladdin Systems Private Files encrypted file
PFA Type 1 font (ASCII) PFB Type 1 font
(binary) PFC PF Component PFM Printer Font
Metrics PGL HP Plotter drawing PGM Portable
Graymap (bitmap) PGP PGP encrypted file
PH Temporary file generated by Microsoft Help
Compiler PHTML Perl-parsed HTML PIC PC Paint
bitmap PIC Lotus picture PIC Macintosh PICT
drawing PICT Mac PICT image file PIF Program
Information File PIF IBM PIF drawing
PIG Lucas Arts Dark Forces WAD file PIN Epic
Pinball data file PIN Epic Pinball data file
PIX Inset Systems bitmap PJ MKS Source
Integrity file PJX Microsoft's Visual Foxpro Project
PJT Microsoft's Visual Foxpro Project
PKG Microsoft Developer Studio application extension
(similar to a DLL file) PKR PGP Public
Keyring PL Perl program PLG A file format
use by REND386/AVRIL PLI Oracle 7 data description
PLM DisorderTracker2 module
PLS DisorderTracker2 sample PLS MPEG
PLayList file (used by WinAmp) PLT HPGL Plotter
drawing PLT AutoCAD Plot drawing PLT Gerber
sign-making software PM5 Pagemaker 5.0 file
PM6 Pagemaker 6.0 file PNG Portable Network
Graphics bitmap PNG Paint Shop Pro Browser catalogue
PNT MacPaint graphic file PNTG Same as PNT
file POG Descent2 PIG file extension
POT Microsoft PowerPoint Template
POV Persistence of Vision ray-tracer
PP4 Picture Publisher 4 bitmap PPA Microsoft
PowerPoint Add-in PPF Turtle Beach Pinnacle Program
File PPM Portable Pixelmap bitmap PPP Parson
Power Publisher PPP Serif PagePlus desktop publishing
default output PPS Microsoft PowerPoint slide show
PPS Paint Shop Pro image PPT Microsoft
PowerPoint presentation PRC 3Com Palmpilot resource
(text or program) file PRE Lotus Freelance
presentation PRF Windows system file
PRF Macromedia Director settings file
PRG dBase, Clipper, and FoxPro program source files
PRG WAVmaker program PRJ 3d Studio (DOS)
project file PRN Print Table (space delimited text)
PRN DataCAD Windows Printer file PRS Harvard
Graphics for Windows presentation PRT A
print-formatted file PRV A PsiMail Internet provider
template file PRZ Lotus Freelance Graphics 97 file
PS Postscript-formatted file (a Postscript
printer-ready file) PSB Pinnacle Sound Bank
PSD Adobe Photoshop bitmap PSI PSION a-law
audio PSM Protracker Studio Module format
PSM Sound data for Epic's games
PST Microsoft Outlook Personal Folder File
PTM Polytracker music module (MOD) file
PUB Ventura Publisher publication
PUB Microsoft Publisher document
PWD Microsoft Pocket Word document
PWL Windows 95 password list file
PWP Photoworks image file (a roll of file that can be
viewed using Photoworks) PWZ Microsoft
PowerPoint Wizard PXL Microsoft Pocket Excel
spreadsheet PY Save emessages from Yahoo
QAD PF QuickArt Document
QBW QuickBooks for Windows file QDT Quick
Books data file from the Quicken UK Accountancy/Tax/Invoice
program QD3D Apple's QuickDraw 3D Metafile
format QFL FAMILY LAWYER document
QIC Microsoft Backup file
QIF QuickTime-related image (MIME)
QIF Quicken Import File QLB Quick Library
QM Quality Motion file QRY Microsoft Query
QST Quake Spy Tab file QT QuickTime Movie
QTI QuickTime-related image
QTIF QuickTime-related image QTM QuickTime
Movie QTP QuickTime Preferences file
QTS MacPICT image file QTS QuickTime-related
image QTX QuickTime-related image
QW Symantec Q&A Write program file
QXD Quark XPress file
R Pegasus Mail resource
file RA Real Audio sound RAM RealAudio
metafile RAR RAR compressed archive (Eugene
Roshall's format) RAS Sun Raster Images bitmap
RAW Raw File Format (bitmap) RAW Raw signed
PCM data RBH Maintained by RoboHELP, the RBH file
adds to the information contained in the Help
project file RDF Resource Description Framework file
(related to XML and metadata) RDL Descent Registered
Level REC Recorder macro REC RapidComm voice
file REG Registration file RES Microsoft
Visual C++ Resource RGB SGI Silicon Graphics RGB
files RFT Revisable Form Text (part of IBM's DCA or
Document Content Architecture)
RLE Run-Length Encoded bitmap RL2 Descent2
Registered Level RM Real Audio video file
RMD Microsoft RegMaid document RMF Rich Map
Format (used by 3-D game editors to store a map)
RMI MIDI music ROV Rescue Rover data file
RPM RedHat Package Manager package (for Linux)
RPM RedHat Package Manager package (for Linux)
RPT Microsoft Visual Basic Crystal Reports file
RRS save file for the ace game Road Rash
RSL Borderland's Paradox 7 reports RTF Rich
Text Format document RTM Real Tracker music module
(MOD) file RTK Used by RoboHELP to simulate the
search feature of Windows help RTS RealAudio's RTSL
document RTS RoboHELP to speed complex operations
RUL Extension used in InstallShield
RVP Microsoft Scan Configuration file (MIME)
RXX RAR compressed files from a multi-volume archive
(xx = a number from 01 to 99)
S Assembler source code
S3I Scream Tracker v3 instrument S3M Sound
module file for ScreamTracker v3 SAM Ami Professional
document SAM Signed 8bit sample data
SAV Saved game file SB Raw Signed Byte
(8bit) data SBK Creative Labs Soundfont 1.0 Bank file
(Soundblaster)/EMU SoundFont v1.x Bank files
SBL Shockwave Flash object SC2 Microsoft
Schedule+ 7 file format SC2 SAS catalog (Windows
95/NT, OS/2, Mac) SCC Microsoft Source Safe file
SCD Matrix/Imapro SCODL slide image
SCD Microsoft Schedule+ 7 SCF Windows
Explorer command file SCH Microsoft Schedule+ 1
SCI ScanVec Inspire Native file format
SCN trueSpace2 scene SCP Dial-Up Networking
Script SCR Windows screensaver SCR Fax image
SCT SAS catalog (Dos) SCT Scitex CT bitmap
SCT Microsoft FoxPro forms SCT01 SAS catalog
(Unix) SCV ScanVec CASmate Native file format
SCX Microsoft FoxPro forms SD Sound Designer
I audio SD2 Sound Designer 2 flattened file/data fork
SD2 SAS database (Windows 95/NT OS/2, Mac)
SDF System Data File Format - legacy Unisys (Sperry)
format SDK Roland S-series floppy disk image
SDL SmartDraw library SDR SmartDraw drawing
SDS Raw Midi Sample Dump Standard file
SDT SmartDraw template SDV Semicolon Divided
Values file SDW Lotus WordPro graphic file
SDW Raw Signed DWord (32bit) data SDX Midi
Sample Dump Standard files compacted by SDX
SEA Self-expanding archive (used by Stuffit for Mac
files and possibly by others) SEP Tagged
Image File Format (TIFF) bitmap SES Cood Edit Session
file (common digital audio editor file ) SF IRCAM
SoundFile format SF2 Emu SoundFont v2.0 file
SFD SoundStage Sound File Data
SFI SoundStage Sound File Info SFR Sonic
Foundry Sample Resource SFW Seattle Film Works
(Mangled JPEG) SFX RAR self-extracting archive
SF2 Creative Labs Soundfont 2.0 Bank file
(Soundblaster) SGML Standard Generalized Markup
Language SHB Corel Show presentation
SHB Document shortcut file SHG Hotspot
bitmap SHP 3D Studio (DOS) shapes file
SHP File format used by some programs for 3D modeling
of multipart interactive triangle models
SHS Shell scrap file SHW Corel Show
presentation SIG Signature file SHTML HTML
file containing Server Side Includes (SSI)
SIT Stuffit archive of Mac files SIZ Oracle
7 configuration SKA PGP secret Keyring
SKL Macromedia Director resource file
SL PACT's Save Layout extension SLB AutoDesk
Slide Library File Format SLD AutoDesk Slide File
Format SLK Symbolic Link (SYLK) spreadsheet
SM3 DataCAD Symbol file SMP Samplevision
format SMP Ad Lib Gold Sample SND NeXT sound
SND Mac Sound Resource SND Raw unsigned PCM
data SND AKAI MPC-series sample SNDR Sounder
sound file SNDT Sndtool sound file SOU SB
Studio II sound SPD Speach Data file
SPL Shockwave Flash Object SPL Digitracker
Sample SPPACK SPPack sound sample
SPRITE Acorn's bitmap format SQC Structured
Query Language (SQR) common code file SQL Informix
SQL queries SQL Generally used by database products
as an extension for SQL queries (scripts, text, or
binary) SQR Structured Query Language (SQR) program
file SSD01 SAS data sets (Unix) SSD SAS
database (Dos) STM Shorter suffix for .shtml, an HTML
file containing a Server Side Include (SSI)
STM Scream Tracker v2 music module (MOD) file
ST Atari ST disk image STR Sceensaver
exetension STY Ventura Publisher style sheet
SVX Amiga 8SVX sound SVX Interchange file
format, 8SVX/16SV SW Raw signed Word (16bit) data
SWA Shockwave audio file in Macromedia Director (an
MP3 file) SWF Shockwave Flash object
SWP DataCAD Swap file SYS System file
SYW Yamaha SY-series wave files
TAB Guitar Tablature file
TAR Tape Archive TAZ Unix Gzip/Tape Archive
TBK Asymetrix Toolbook interactive multimedia files
TCL Script in the TCL/TK Language TDB Thumbs
Plus database TDDD A file format use by the Imagine
& Turbo Silver ray-tracers TEX Texture file
TGA Targa bitmap TGZ Unix Gzip/Tape Archive
THEME Windows 95 Desktop Theme THN Graphics
Workshop for Windows thumbnail TIF Tag Image File
Format (TIFF) bitmap TIFF Tag Image File Format
(TIFF) bitmap TIG Tiger file, used by US government
to distribute maps TLB OLE Type Library
TLE Two-Line Element set (NASA) TMP Windows
temporary file TOC Table of contents of Eudora
mailboxes TOL Kodak photoenhancer TOS The
Operation System for Atari line of 16/32 and 32/32 computers
TPL CakeWalk Audio Template file TPL DataCAD
Template file TPP Teleport Pro Project
TRK Kermit scrpit file TRM Terminal file
TRN MKS Source Integrity project usage log
TTF TrueType font TTK Corel Catalyst
Translation Tool Kit TWF TabWorks file
TWW Tagwrite Template TX8 MS-DOS text
TXB Descent/D2 Encoded Briefing File
TXT ASCII text-formatted audio data
TXW Yamaha TX16W wave files TZ Old
compression format file T2T Sonata CAD modelling
software file
UB Raw unsigned byte
(8-bit) data UDF Windows NT Uniqueness Database File
UDW Raw unsigned doubleword (32-bit) data
ULAW US telephony format (CCITT G.711) audio
ULT Ultratracker music module (MOD) file
UNI MikMod UniMod formatted file
URL Internet shortcut file USE MKS Source
Integrity file UU UU-encoded file
UUE UU-encoded file UW Raw unsigned word
(16-bit) data UWF UltraTracker Wave file
V8 Covox 8-bit audio file
VAP Annotated speech VBA VBase file
VBP Visual Basic Project VBW Microsoft
Visual Basic workspace VBX Visual Basic custom
control VCE Natural MicroSystems (NMS) unformatted
voice file (used by Cool Edit) VCF Virtual card file
(Netscape) VCF Vevi configuration file; defines
objects for use with Sense8's WorldToolKit
VCT Microsoft FoxPro class library
VCX Microsoft FoxPro class library VDA Targa
bitmap VI Virtual Instrument file from National
Instruments LABView product VIFF Khoros Visualisation
format VIR File identified as a virus-infected file
by Norton AntiVirus and possibly others
VIV VivoActive Player streaming video file
VIZ Division's dVS/dVISE file VLB Corel
Ventura Library VMF FaxWorks audio file
VOC Creative Labs Sound Blaster audio file
VOX Dialogic audio file coded using ADPCM
VOX Natural MicroSystems (NMS) formatted voice file
VOX Talking Technology audio file VP Ventura
Publisher publication VQE Yamaha Sound-VQ Locator
file VQF Yamaha Sound-VQ file (possible emerging
standard) VQL Yamah Sound-VQ Locator file
VRF Oracle 7 configuration VRML A VRML file
VSD Visio drawing (flow chart or schematic)
VSL Download List file (GetRight) VSS Visio
Stencil file VST Targa bitmap VSW Visio
Workspace file VXD Microsoft Windows virtual device
driver
WAB Microsoft Outlook file
WAD Large file for Doom game containing video, player
level, and other information WAV Windows
Waveform sound WB1 QuattroPro for Windows spreadsheet
WB2 QuattroPro for Windows spreadsheet
WBK Microsoft Word Backup WBL Argo WebLoad
II upload file WBR Crick Software WordBar File
WBT Crick Software Wordbar Template
WCM WordPerfect Macro WDB Microsoft Works
database WEB CorelXara Web document
WFB Turtle Beach WaveFront Bank (Maui/Rio/Monterey)
WFD Turtle Beach WaveFront Drum set
(Maui/Rio/Monterey) WFN symbols for use in Corel Draw
WFP Turtle Beach WaveFront Program
(Maui/Rio/Monterey) WGP Wild Board Games data file
WID Ventura width table WIL WinImage file
WIZ Microsoft Word Wizard WK1 Lotus 123
versions 1 & 2 spreadsheet WK3 Lotus 123 version
3 spreadsheet WK4 Lotus 123 version 4 spreadsheet
WKS Lotus 123 Worksheet spreadsheet
WKS Microsoft Works document
WLD REND386/AVRIL file WLF Argo WebLoad I
upload file WLL Microsoft Word Add-In
WMF Windows Metafile WOW Grave Composer
music module (MOD) file WP WordPerfect document
WPW Novel PerfectWorks document
WP4 WordPerfect 4 document WP5 WordPerfect 5
document WP6 WordPerfect 6 document
WPD WordPerfect Demo WPD WordPerfect
Document WPG WordPerfect Graphic
WPS Microsoft Works document WPT WordPerfect
Template WQ1 QuattroPro/DOS spreadsheet
WQ2 QuattroPro/DOS version 5 spreadsheet
WR1 Lotus Symphony WRI Write document
WRK Cakewalk music audio project file
WRL Virtual Reality model WRZ Another VRML
fileject WS1 WordStar for Windows 1 document
WS2 WordStar for Windows 2 document
WS3 WordStar for Windows 3 document
WS4 WordStar for Windows 4 document
WS5 WordStar for Windows 5 document
WS6 WordStar for Windows 6 document
WS7 WordStar for Windows 7 document
WSD WordStar 2000 document WVL Wavelet
Compressed Bitmap WWL Microsoft Word add-in file
X AVS image format
XAR Corel Xara drawing XBM A MIME 'xbitmap'
image XI Instrument sample file for ScreamTracker
XIF Wang imaging file (comes with Windows 95)
XLA Microsoft Excel add-in XLB Microsoft
Excel toolbar XLC Microsoft Excel chart
XLD Microsoft Excel dialogue XLK Microsoft
Excel backup XLL Microsoft Excel add-in file
XLM Microsoft Excel macro XLS Microsoft
Excel worksheet XLT Microsoft Excel template
XLV Microsoft Excel VBA module XLW Microsoft
Excel workbook / workspace XM FastTracker 2, Digital
Tracker music module (MOD) file XNK Microsoft
Exchange shortcut file XPM X BitMap format
XR1 Epic MegaGames Xargon data file
XTP XTree data file XWD X Window Dump format
XWF Yamaha XG Works file (MIDI sequencing)
XY3 XYWrite III document XY4 XYWrite IV
document XYP XYWrite III Plus document
XYW XYWrite for Windows 4.0 document
X16 Macromedia Extra (program extension), 16 bit
X32 Macromedia Extra (program extension), 32 bit
YAL Arts & Letters
clipart library YBK Microsoft Encarta Yearbook
Z Unix Gzip Compressed
ZIP Zip file Compressed archive ZOO An early
compressed file format
000-999 Used to number old
(backup) versions of files (for example, CONFIG.SYS
when changed by an installation program); also used to
number related data files for multiple users of a
small- scale PC application 12M Lotus 123
97 Smartmaster file 123 Lotus 123 97 file
2GR and 3GR VGA Graphics driver/configuration files
under Windows 3DM 3D NURBS modeler, Rhino
3DS A file in 3D Studio (for DOS) format
386 A file for use in an 80386 or higher
microprocessor 4GE Informix 4GL compiled code
4GL Informix 4GL source code 669 Composer
669, Unis Composer music mod file 669 669 tracker
module #01 and higher A method of numbering picture
files for a roll of film that has been scanned for
computer presentation $$$ Used by OS/2 to keep track
of archived files @@@ Screen files used in the
installation and instruction on use of such
applications as Microsoft Codeview for C
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