| .MIFF |
An ImageMagick file format |
| .MIL |
Group 4 |
| .mime |
MIME (filename extension); the encoding
format used by the Multipurpose Internet Mail Extension. |
| .MME |
Mime encoded file (filename extension);
the encoding format used by the Multipurpose Internet Mail Extension. |
| .MMF |
Microsoft Mail File (filename extension). |
| .MMM |
Macromind animation |
| .MOD |
(For module). A music file format that
contains digitized sound samples A .MOD file takes more memory than a MIDI file because a
MIDI file contains instructions for making sounds but not the actual sound samples. There
are .MOD players for Amiga, PC, and Macintosh computers. |
| .moov |
QuickTime movie. This file can be viewed
with QuickTime Player. |
| .MOV |
Movie - QuickTime |
| .movie |
QuickTime movie. This file can be viewed
with QuickTime Player. |
| .MOZ |
Mozilla - Netscape cache file (filename
extension). |
| .mp2 |
MPEG Layer II compressed audio. This file
can be played using QuickTime Player and some other sound players. |
| .mp3 |
MPEG Layer III compressed audio. This
file can be played with QuickTime Player, Real Player, and some other sound players. |
| .MPE |
MPEG (filename extension). |
| .MPEG |
MPEG movie or animation file. This file
can be played with QuickTime Player. |
| .MPG |
MPEG encoded file. This file is an MPEG
movie, and can be played with QuickTime Player. |
| .MPNT |
Macintosh MacPaint |
| .MPP |
Microsoft Project project file (filename
extension). |
| .MPT |
Microsoft Project template file (filename
extension). |
| .MPX |
Microsoft Project export file (filename
extension). |
| .MRK |
Markup - Informative Graphics |
| .MSG |
Message file |
| .MSN |
Microsoft Network document (filename
extension). |
| .MSP |
Microsoft Paint |
| .MUS |
Music (filename extension). |
| .MVB |
Microsoft Multimedia Viewer (filename
extension). |
| .MYS |
Myst saved game file (filename
extension). |
| .NDX |
Index - dBASE |
| .NET |
Network file (filename extension). |
| .NG |
Norton Guides |
| .NLM |
NLM program - NetWare |
| .NTF |
Notes Template File - Lotus Notes
database (filename extension). |
| .OAB |
Outlook Address Book - Microsoft
(filename extension). |
| .OAZ |
OAZ Fax |
| .OBD |
Microsoft Office Binder (filename
extension). |
| .OBJ |
Object module |
| .OCX |
Object Linking and Embedding (OLE) Custom
Control (filename extension). |
| .OLB |
OLE Object Library (filename extension). |
| .OLE |
OLE object (filename extension). |
| .ONX |
Onyx Graphics Postershop (filename
extension). |
| .ORI |
Original |
| .OVL |
Overlay module |
| .OVR |
Overlay module |
| .OZM |
Sharp Organizer memo bank |
| .OZP |
Sharp Organizer telephone bank |
| .P10 |
Tektronix Plot10 |
| .PAB |
Personal Address Book - Microsoft
(filename extension). |
| .PAK |
Quake game data (filename extension). |
| .PAL |
Paintbrush palette (filename extension). |
| .PAS |
Pascal program file |
| .PAT |
Pattern - Corel Draw (filename
extension). |
| .PBK |
Microsoft Phonebook (filename extension). |
| .PBM |
Portable Bit Map |
| .PCD |
Photo CD format |
| .PCL |
HP LaserJet |
| .PCM |
LaserJet cartridge information |
| .PCS |
PICS animation (filename extension). |
| .PCT |
PC Paint |
| .PCW |
PC Write |
| .PCX |
1. PC Paintbrush 2. Graphics file - Zsoft
format |
| .PDG |
PrintShop Deluxe (filename extension). |
| .PDV |
PC Paintbrush printer driver |
| .PFA |
Type 1 font - ASCII |
| .PFB |
Type 1 font - encrypted |
| .PFM |
Postscript Font Metrics; Windows Type 1
font metrics |
| .PGL |
HPGL 7475A plotter - vector graphics |
| .PGM |
Portable Gray Map bitmap (filename
extension). |
| .PHTML |
HTML document with preprocessing
instructions (PPIs) (filename extension). |
| .PIC |
PICT graphics format, or PIXAR picture
file |
| .PICT |
Macintosh QuickDraw/PICT This kind of
file stores images in QuickDraw vector format. PICT2 can have grayscale bitmapped images
also. |
| .PIF |
Program Information File - Windows |
| .PIT |
PackIt - Macintosh compression |
| .PIX |
Inset Systems graphics |
| .PJX |
Project file - Visual FoxPro (filename
extension). |
| .pkg |
AppleLink package compression format
These files are decodable by StuffIt Expander. |
| .PL |
Perl script (filename extension). |
| .PLT |
Plotter drawing (filename extension). |
| .PM |
PageMaker |
| .PM3 |
PageMaker 3 document |
| .PM4 |
PageMaker 4 document |
| .PM5 |
PageMaker 5 document |
| .PNG |
1. Portable Network Graphics bitmap
(filename extension). 2. Paint Shop Pro Browser (filename extension). |
| .POV |
Persistence Of Vision raytracer (filename
extension). |
| .PPA |
PowerPoint Add-in - Microsoft (filename
extension). |
| .PPD |
PostScript Printer Description |
| .PPM |
Portable PixelMap (filename extension). |
| .PPS |
PowerPoint Slideshow (filename
extension). |
| .PPT |
PowerPoint presentation (filename
extension). |
| .PRD |
Printer driver - Microsoft Word, Word
Perfect, Microsoft Works (filename extension). |
| .PRG |
A dBASE source code file |
| .PRJ |
Project file |
| .PRN |
1. Print file - temporary 2. XyWrite
printer driver 3. PostScript file |
| .PRS |
WordPerfect printer driver |
| .PRT |
Formatted text |
| .PS |
PostScript. This is a plain text file. |
| .PSD |
Photoshop Document |
| .PUB |
Publication - Ventura Publisher,
Microsoft Publisher (filename extension). |
| .PWD |
Pocket Word document - Microsoft
(filename extension). |
| .PWZ |
Microsoft PowerPoint Wizard (filename
extension). |
| .PXL |
Microsoft Pocket Excel (filename
extension). |
| .QBW |
QuickBooks for Windows (filename
extension). |
| .QDK |
Quarterdeck Qemm (filename extension). |
| .QLB |
Quick Library (filename extension). |
| .QLC |
ATM font information |
| .QRY |
Microsoft Query (filename extension). |
| .qt |
QuickTime movie, binary file type
(filename extension). |
| .QTM |
QuickTime Movie (filename extension). |
| .R8L |
LaserJet landscape font |
| .R8P |
LaserJet portrait font |
| .RA |
RealAudio |
| .RAM |
Real Audio |
| .RAS |
Raster graphics - Sun |
| .RAW |
Raw file format - bitmap (filename
extension). |
| .rc |
A filename extension found in many UNIX
files (.newsrc, etc.) which means "run commands". |
| .REC |
Windows Recorder macro file (filename
extension). |
| .REG |
Registration file (filename extension). |
| .REP |
Report file (filename extension). |
| .RFT |
RFT-DCA (filename extension). |
| .RGB |
An SGI RGB image file |
| .RIA |
Alpharel Group IV raster graphics |
| .RIB |
Renderman graphics |
| .RIC |
Roch FaxNet |
| .RIF |
Fractal Painter bitmap (filename
extension). |
| .RIFF |
Resource Interchange File Format A
multimedia file format; the Microsoft equivalent to Amiga IFF format. |
| .RIX |
RIX virtual screen |
| .RLA |
Wavefront raster image |
| .RLC |
CAD Overlay ESP - Image Systems |
| .RLE |
Run Length Encoded |
| .RM |
Real Media. |
| .RMI |
RIFF MIDI file |
| .RND |
AutoShade format |
| .RNL |
GTX Runlength raster graphics |
| .RPT |
Report file (filename extension). |
| .RTF |
Microsoft text and graphics |
| .S |
Assembly language file - Unix |
| .S3M |
MOD music file (filename extension). |
| .SAM |
AmiPro |
| .SAV |
Saved game (filename extension). |
| .SBP |
IBM Storyboard graphics / Superbase text |
| .SC |
Source Code - Paradox |
| .SCM |
ScreenCam movie |
| .SCP |
Dial-up networking script (filename
extension). |
| .SCR |
1. Screensaver - Windows. 2. Screen
Layout - dBASE. 3. Script for Apple's Disk Copy utility. |
| .SCT |
Screen Capture Text - Lotus |
| .SDL |
SmartDraw Library (filename extension). |
| .SEA |
Self-Extracting Archive (Stuffit or
Compact Pro) |
| .SEG |
Segment (of a compressed file saved in
segments with Stuffit or Compact Pro) |
| .SEP |
TIFF bitmap (filename extension). |
| .SET |
Setup parameters |
| .SFL |
LaserJet landscape font |
| .SFP |
LaserJet portrait font |
| .SFS |
PCL 5 scalable font |
| .shar |
UNIX shell archive (filename extension),
which can be decoded by Unshar. |
| .SHTML |
HTML file with embedded server-side
includes (SSIs) (filename extension). |
| .SI |
SoftImage image file |
| .sig |
Signature A .sig file can be set up and
automatically attached to outgoing email, newsgroup postings, etc. It includes the name
and contact information of the sender, and may also have ASCII art, favorite quotes, etc. |
| .SIT |
Stuffit compressed file |
| .SLD |
AutoCAD slide |
| .SLK |
Symbolic Link (SYLK) spreadsheet
(filename extension). |
| .SMI |
Self-Mounting Image. This file is a
Macintosh Disk Image, similar to an .img file, but it does not require the use of Disk
Copy. When the file is downloaded, a disk image appears on the desktop. The disk image
will behave like a read-only disk. |
| .SND |
Sound file |
| .SNM |
Netscape mail (filename extension). |
| .SPD |
Speedo scalable font |
| .spx |
Screen Peace Extension |
| .SQB |
SyQuest Backup (filename extension). |
| .SRC |
A file used in the creation of .INI files
for configuration settings (filename extension). |
| .STY |
Style sheet - Ventura |
| .SVX |
Amiga 8SVX sound (filename extension). |
| .SWP |
Swap - temporary file (filename
extension). |
| .SYD |
Sysedit backup file (filename extension). |
| .SYL |
SYLK spreadsheet format |
| .SYNU |
SDSC Synu image |
| .SYS |
System file |
| .TAL |
Adobe Type Align |
| .TAR |
Tar - Tape ARchive (filename extension).
Tar is a UNIX method of archiving files, which can also be used by PCs. Tar archives files
but does not compress them, so sometimes .tar files are compressed with other utilities,
which produces extensions like .tar.gz, .tar.Z, and .tgz. Archive files with the .tar
extension can be extracted in UNIX with tar or on a PC with WinZip or on the Mac with the
program Tar. |
| .tar.gz |
Combined filename extension for a file
that has been archived using tar and then gzipped. |
| .tar.z
or .tar.Z |
Combined filename extension for a file
that has been archived using tar and then zipped. |
| .taz |
Another way of writing .tar.Z |
| .TBK |
Asymetrix Toolbook (filename extension). |
| .TDF |
Typeface definition - Speedo |
| .TEX |
Tex or LaTex document |
| .TFM |
Font metrics - Intellifont |
| .TGA |
TARGA graphics |
| .tgz |
Another name for .tar.z and .tar.gz |
| .THEME |
Desktop theme - Windows 95 (filename
extension). |
| .THN |
Thumbnail (filename extension). |
| .TIF |
TIFF graphics file |
| .TIFF |
TIFF graphics file (filename extension). |
| .TLB |
OLE Type Library (filename extension). |
| .TMP |
Temporary file |
| .TOC |
Table Of Contents (filename extension). |
| .TRM |
Terminal settings - Windows (filename
extension). |
| .TTC |
TrueType compressed font |
| .TTF |
TrueType font |
| .TWF |
TabWorks File (file extension). |
| .TX8 |
MS-DOS text (filename extension). |
| .TXT |
ASCII text file |
| .USL |
LaserJet landscape font |
| .USP |
LaserJet portrait font |
| .uu |
Uuencode compressed file |
| .uue |
Uuencode file |
| .VBP |
Visual Basic Project (filename
extension). |
| .VBX |
Visual Basic Extension |
| .VDA |
Targa bitmap (filename extension). |
| .VGR |
Ventura |
| .VIFF |
Khoros Visualization image file |
| .VLB |
Ventura Library (filename extension). |
| .VOC |
Sound Blaster |
| .VP |
Ventura Publisher (filename extension). |
| .VST |
Targa bitmap (filename extension). |
| .VUE |
Relational View - dBASE |
| .VXD |
Virtual Device Driver (filename
extension). |
| .WAB |
Windows Address Book (filename
extension). |
| .WAV |
Sound file |
| .WBK |
Microsoft Word Backup (filename
extension). |
| .WDB |
Microsoft Works Database (filename
extension). |
| .WID |
Ventura width table (filename extension). |
| .WIN |
Windows backup file (filename extension). |
| .WIZ |
Microsoft Word Wizard (filename
extension). |
| .WK1 |
Lotus 1-2-3, up to 2.01 |
| .WK3 |
Lotus version 3 |
| .WK4 |
Lotus version 4 |
| .WKQ |
Quattro spreadsheet |
| .WKS |
1. Lotus Worksheet (filename extension).
2. Microsoft Works document (filename extension). |
| .WLR |
VRML page |
| .WMF |
Windows Metafile |
| .WP |
WordPerfect |
| .WPD |
1. Windows Printer Description (filename
extension). 2. WordPerfect Demo (filename extension). 3. WordPerfect Document (filename
extension). |
| .WPG |
WordPerfect Graphics |
| .WPM |
WordPerfect macro |
| .WPS |
Microsoft Works document |
| .WPT |
WordPerfect Template (filename
extension). |
| .WRI |
Windows Write document |
| .WRK |
Symphony spreadsheet |
| .WS1 |
WordStar for Windows 1 document (filename
extension). |
| .WS2 |
WordStar for Windows 2 document (filename
extension). |
| .WS3 |
WordStar for Windows 3 document (filename
extension). |
| .WS4 |
WordStar for Windows 4 document (filename
extension). |
| .WS5 |
WordStar for Windows 5 document (filename
extension). |
| .WS6 |
WordStar for Windows 6 document (filename
extension). |
| .WS7 |
WordStar for Windows 7 document (filename
extension). |
| .WVL |
Wavelet compressed bitmap (filename
extension). |
| .X |
AVS X image file |
| .XAR |
Corel Xara drawing (filename extension). |
| .XBM |
X Bitmap |
| .XFX |
JetFax |
| .XIF |
Xerox Image Format (filename extension). |
| .XLC |
Excel chart |
| .XLK |
Microsoft Excel backup (filename
extension). |
| .XLM |
Microsoft Excel macro (filename
extension). |
| .XLS |
Excel worksheet |
| .XLT |
Microsoft Excel template (filename
extension). |
| .XM |
MOD music format (filename extension). |
| .XPM |
X Pixelmap |
| .XWD |
X Window System window dump image |
| .XXE |
Xxencoded file (filename extension). |
| .YAL |
Arts & Letters click art (filename
extension). |
| .Z |
Unix compress file |
| .ZIP |
File compressed using PKZIP |
| .ZOO |
Zoo |
| assistants |
A special kind of file used by Claris
Works. Assistants guide the user through a task by asking a series of questions and then
use the answers to perform a task. Assistants in Claris Works can be used to create such
useful items as calendars, newsletters, stationery, labels, and address lists, to make
footnotes within a file, to find documents, etc. |
| bad
fix |
A failed attempt to repair a computer
bug; a fix that doesn't work or that introduces new and unexpected problems. The
expression has cropped up a lot in relation to Y2K fixes. |
| EXE |
An executable binary file, marked with
the .EXE filename extension in MS-DOS, Windows, OS/2, and VAX/VMS. |
| LHA |
A DOS compression program. Compressed
files have the extension .lhz. |
| MBX |
Message Base - Eudora (filename
extension). |