.extensions

[boron]

File extensions (http://filext.com/alphalist.php?extstart=%5EA). Link to programs which can open a particular file.

[Submerge]

Thanks, comes extremely helpful when Ive got files I don't know what program they go to.

[boron]

I've built below list a while ago, am not sure if it is 100% accurate, it shows main file types and corresponding programs.

WMP = Windows Media Player
R = Real Audio
Q = Quicktime

TEXT FILES:

.html... WEB BROWSER
.txt... NOTEPAD, DOS...
.doc... WORD
.pdf (portable document format)... ACROBAT READER
.ps (post script)... GHOSTSCRIPT (win,li)

GRAPHIC FILES:

.gif
.jpg/jpeg...
.tiff... PHOTOSHOP and other graphic programs
.psd.... PHOTOSHOP

AUDIO FILES:

.au... WMP,R,WAVEFORM HOLDandMODIFY
.aiff... WMP,R,Q
.midi... WMP,Q(iTUNES),R
.mp3,... WMP,R,Q,WINAMP3.0
.ra... R
.wav...(standard for WIN)... WMP,R,Q,WIN PLAY!, WINAMP3.0,

MPEG-4... Q

VIDEO FILES:

.avi...(standard video file for Win)........WMP, R, Q, AVI Video for Windows player (aviprox.exe)
.mov,.qt............................. Q
.mpg/mpeg,.m1v,.mp2,mp3,.mpa,.mpe,.mpv2... WMP, R, Q,
.ram,.rm... R, R-ALT
.viv... VIVO video
.vqf... VQF Digital Audio
.bin,.cue... (CD-image format)
.ivf (Intel Video Technology) WMP
.asf,.wma,.wmv... WMP,R
.fli,.flc... (Autodesk Animator Flic)
.swf (flash; animacije)... FLASH,R,Q

COMPRESSED FILES:

.arc... Stuffit Expander for Windows(sitexxx.exe)
.arj (za DOS)... Stuffit Expander for Windows or WinZIP.
.exe (DOS,WIN)... executable, self extracting
.gz/gzip.z... GUNZIP
.tar,.zip... WINZIP
.hqx... Macintosh binary file converted into ASCII text so it can be safely sent over the Internet.
.uu... (A UUencoded file. UUencoding allows the user to convert binary data into text so it can be sent via e-mail)... WINCODE(Win)


WINDOWS MEDIA PLAYER File Formats support

http://support.microsoft.com/default.aspx?kbid=316992&product=w98#3

Windows Media Formats
-Advanced Systems Format (.asf)
-Windows Media Audio (.wma)
-Windows Media Video (.wmv,.wm)
Windows Media metafiles
-Advanced Stream Redirector (.asx)
-Windows Media Audio Redirector (.wax)
-Windows Media Video Redirector (.wvx)
-Windows Media Redirector (.wmx)
-Windows Media Player Playlist (.wpl)
Microsoft Digital Video Recording (.dvr-ms)
Windows Media Download Package (.wmd)
Audio Visual Interleave (.avi)
Moving Pictures Experts Group (.mpg.mpeg.m1v.mp2.mp3.mpa.mpe.mpv2.m3u)
MPEG-1 (.mpeg,.mpg,.m1v)
MPEG Audio Layer III (.mp3)
MPEG Audio Layer II (.mp2,.mpa)
M3U (.m3u)
Musical Instr. Digital Interface (.mid,.midi,.rmi)
Audio Interchange File Format (.aif,.aifc,.aiff)
Sun Microsystems and NeXT (.au, .snd )
Audio for Windows (.wav)
CD Audio Track (.cda)
Indeo Video Technology (.ivf)
Windows Media Player Skins (.wmz,.wms)
QuickTime Content (.mov,.qt)verz. 2.0 ali zgodn.

!!!NOTSupported:!!!!!!!!!!!!!!!!!!!!!!!!!!!!
RealNetworks Content (.ra,.rm,.ram)
QuickTime Content (.avi,.mov,.qt)
MPEG-4 (.mp4)


REAL PLAYER SUPPORTED FILE FORMATS:

A2B .mes
Active Stream Format .asf
Audio File .au
Blue Matter Files .bmo,.bmr,.bmt
GIF File Format .gif
IBM EMMS Files .emm
Liquid Audio .lqt
MJuice Files .mjf
MP3 Playlist Files .m3u,.pls,.xpl
MPEG Files .mp3,.mpeg,.mpa,.mp2,.mpv,.mx3
MPEG Playlist File .pls
MPEG URL (MIME Audio File) .m3u
Macromedia Flash .swf
Portable Net. Graphics image files .png
QuickTime Files .avi,.aiff
RAM Meta File .ram,.rmm
RealAudio, RealMedia .ra,.rm,.rmx,.rmj,.rms
RealOne Music .mnd
RealPix .rp
RealText .rt
WAVE .wav
Windows Media Audio .wma
RealJukebox Skins .rjs
RealJukebox Track Info Packages .rmp


QUICKTIME SUPPORTED FILE FORMATS:

Video formats: .avi
.dv
Motion JPEG
MPEG-1
MPEG-2,1
MPEG-4
3GPP
Audio formats: .aiff/.aifc
Audio CD
.mp3
Sound Designer II
System 7 Sound
uLaw
.au
.wav
MPEG-4
Still image formats: .bmp,.gif,.jpeg/.jfif
.png,
Photoshop (with layers)
SGI,Targa,FlashPix,.tiff
Animation formats: .3dmf
Animated GIF
.flc/.fli
Flash, PICS
Other formats: .kar (Karaoke)
.midi
QuickDraw GX,
QuickTime Image File,Text

[davestarr]

Building your own list is a great learning tool, but there are soooo many file types and extensions you could make a career of it. This site already did:
http://filext.com/
It's a good resource and a good learning exercise to see why, when you ask to open an unfamiliar file type and allow an Internet search to find the program, these guys are the one that comes up. Domain name, title bar, meta description, meta keywords, keywords in the text without over stuffing ... seems well done.

[boron]

There are reasons why file extensions need to be listed in different ways.
Someone only needs them A-Z.
Someone only needs a collection of the main "everyday" file types. I will try to arrange my messy post above.

All contributtions toward this matter appreciated.
Filext.com made a good SEO. They are 1st on Google for file extensions.