Extension Key

Pure Mac

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Internet Utilities
iPad
iPhone
IRC & IM
Online Games
Peer-to-Peer
Radio
Remote Access
Usenet
Video Conferencing
VoIP

Multimedia
Audio
CAD
Comics
DTP
eBook
Font Utilities
Graphics
iTunes & MP3
Media Center
Music
Photoshop Plug-ins
Presentation
3D & Animation
Screen Capture
Video

System
Alternative OS
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Command Line
Contextual Menus
Cross-Platform
Diagnostics
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Drivers
Face-Lift
Launchers
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System Enhancements
Virus
Widgets
X11

Utilities
Backup
Business
Calendars & Time
Compression
Database
Disk & File
Finance
Handhelds
Network
Notes
Programming
Spreadsheets
Stocks
Task Managers
Telephony
Text Editors

WWW
Auctions
Browsers
Browser Add-ons
The Cloud & SSBs
HTML Editors
Page Rippers
RSS & Podcasting
Site Tweaking
Social Networking
Web Cams
Web Graphics
Web Server

Extension Key
Pure Picks
Software Index

Audio

Extension	Description	Read/Play	Convert	Write/Edit
.aac	MPEG-2 Advanced Audio Coding File	Cog iTunes QuickTime Play Songbird Vox	iTunes Max	Amadeus Pro Fission Sound Studio
.ac3	AC3 Audio File	Perian	ffmpegX mAC3dec Perian SoundConverter
.aif, .aiff	Audio Interchange File	iTunes QuickTime etc.	iTunes Max QuickTime Pro SoundConverter SoX Wrap X Lossless Decoder	Amadeus Pro Audacity BIAS Peak Fission Sound Studio Wave Editor
.ape	Monkey's Audio File	Cog Play Vox	Max xACT X Lossless Decoder
.au	AU Audio File/uLaw	QuickTime SystemSound	ffmpegX Max QuickTime Pro SoundConverter SoX Wrap	Amadeus Pro Sound Studio Wave Editor
.fla, .flac	Free Lossless Audio Codec	Cog Play Songbird Vox	Max SoundConverter xAct X Lossless Decoder	Amadeus Fission
.kar	Karaoke MIDI File	QMidi QuickTime		Melody Assistant
.m4a	MPEG-4 Audio Layer	iTunes QuickTime	Max X Lossless Decoder	Amadeus Pro Fission Sound Studio
.mid, .midi	Musical Instrument Digital Interface	QMidi QuickTime		Cubase Digital Peformer Logic ProTools
.mp2	MPEG Audio Stream, Layer II	QuickTime	ffmpegX Mad SoundConverter
.mp3	MPEG Audio Stream, Layer III	Cog iTunes QuickTime Play Songbird Vox	iTunes Max	Amadeus Pro Audacity AudioSlicer Fission MP3Trimmer Sound Studio
.mpc, .mpp	Musepack Audio File	Cog Play	Max mpc2aiff
.ogg	Ogg Vorbis File	iTunes Cog Play QuickTime Songbird Vox XiphQT	Amadeus Pro Audacity Max SoundConverter SoX Wrap	Amadeus Pro Audacity Fission Sound Studio
.qcp	Qualcomm PureVoice File	QuickTime	QuickTime Pro
.ra, .ram, .rm	RealMedia File	RealPlayer
.snd	Macintosh Sound Resource i.e. Classic Mac OS System Sound	SystemSound	SoX Wrap SoundConverter SystemSound
.vox	VoxWare MetaVoice Encoded Audio		SoundConverter SoX Wrap
.wav	Waveform Audio	iTunes QuickTime SystemSound	Max SoX Wrap X Lossless Decoder	Amadeus Pro Audacity BIAS Peak Fission Sound Studio Wave Editor
.wma	Windows Media Audio File	Flip4Mac WMV	EasyWMA Flip4Mac WMV Player Pro Switch	Flip4Mac WMV Studio

Video

Extension	Description	Read/Play	Convert	Write/Edit
.3gp	3GPP Multimedia File	QuickTime ffmpegX	Episode QuickTime Pro
.asf	Advanced Streaming Format	Windows Media Player Flip4Mac WMV MPlayer VLC	Flip4Mac WMV HandBrake iSquint
.avi	Audio Video Interleave File (very often DivX)	MPlayer Perian VLC	DivX ffmpegX HandBrake iSquint
.div, .divx	DivX Movie	DivX MPlayer Perian VLC	DivX ffmpegX HandBrake iSquint
.flv	Flash Video File	Flash Player Perian VLC	HandBrake iSquint	Flash
.mov	QuickTime Video	QuickTime ffmpegX MPlayer VLC	ffmpegX HandBrake iSquint	QuickTime Pro
.m2a, .m2v, .m2s	MPEG-2 Video	MPEG-2 Playback MPlayer VLC	HandBrake iSquint MPEG-2 Playback
.mp4, .m4v	MPEG 4 Video File	QuickTime MPEG Streamclip MPlayer Perian VLC	ffmpegX HandBrake iSquint MPEG Streamclip QuickTime Pro	MPEG Streamclip QuickTime Pro
.mpg, .mpeg	MPEG Video	QuickTime MPEG Streamclip MPlayer VLC	ffmpegX HandBrake iSquint MPEG Streamclip	MPEG Streamclip
.ra, .ram, .rm	RealMedia	RealPlayer
.swf	Macromedia Flash Format File	Flash Player iSwiff		Flash
.vob	DVD Video Movie File	Apple DVD Player TransLucy MPEG-2 Playback MPlayer VLC	HandBrake iSquint MPEG2 Works	DVD Studio Pro iDVD
.wmv	Windows Media File	Windows Media Player Flip4Mac WMV MPlayer VLC	EasyWMV HandBrake iSquint Flip4Mac WMV Player Pro	Flip4Mac WMV Studio

Graphics

Extension	Description	Read	Write/Convert
.bmp	Bitmap Graphic	GraphicConverter PhotoShop Preview etc.	GraphicConverter PhotoShop
.eps	Encapsulated PostScript	GraphicConverter Illustrator PhotoShop Preview etc.	GraphicConverter Illustrator PhotoShop
.gif	Graphic Interchange Format	GraphicConverter PhotoShop Preview etc.	GraphicConverter PhotoShop
.ico	Windows Icon	GraphicConverter Preview etc.	GraphicConverter
.jpg, .jpeg	JPEG/JIFF Image	GraphicConverter PhotoShop Preview etc.	GraphicConverter PhotoShop
.pcx	PC Paintbrush Graphic	GraphicConverter PhotoShop	GraphicConverter PhotoShop
.pdf	Portable Document Format	GraphicConverter PhotoShop Preview etc.	GraphicConverter PhotoShop
.pic, .pict	Macintosh Quickdraw/PICT Drawing	GraphicConverter PhotoShop Preview etc.	GraphicConverter PhotoShop
.png	Portable Network Graphic	GraphicConverter PhotoShop Preview etc.	GraphicConverter PhotoShop
.psd	PhotoShop File	GraphicConverter PhotoShop Preview etc.	GraphicConverter PhotoShop
.raw	RAW RGB 24-bit Graphic	GraphicConverter PhotoShop	GraphicConverter PhotoShop
.tga	Truevision Targa Graphic	GraphicConverter PhotoShop Preview etc.	GraphicConverter PhotoShop
.tif, .tiff	Tagged Image Format File	GraphicConverter PhotoShop Preview etc.	GraphicConverter PhotoShop
.xpm	X Pixmap Graphic	GraphicConverter	GraphicConverter

Text

Extension	Description	Read	Write/Convert
.chm	Microsoft Compressed HTML Help File	Chamonix Chmox xCHM
.cwk	AppleWorks File	AppleWorks	AppleWorks
.doc	Microsoft Word Document	AbiWord NeoOffice OpenOffice Pages Word	AbiWord NeoOffice OpenOffice Pages Word
.html	Hypertext Markup Language	BBEdit Smultron TextMate TextWrangler etc.	BBEdit Smultron TextMate TextWrangler etc.
.pages	Apple Pages Document	Pages	Pages
.pdf	Portable Document Format	Adobe Reader Pages Preview etc.	Acrobat Pages
.ps	PostScript	MacGhostView PStill
.rtf	Rich Text Format	AbiWord NeoOffice OpenOffice Pages Word etc.	AbiWord NeoOffice OpenOffice Pages Word etc.
.tex, .latex	LaTeX/TeX	LaTeXiT LyX TexMaker TeXShop	LaTeXiT LyX TexMaker TeXShop
.txt	Text File	BBEdit Smultron TextMate TextWrangler etc.	BBEdit Smultron TextMate TextWrangler etc.
.wpd	Word Perfect Document	AbiWord
.xml	Extensible Markup Language	BBEdit Smultron TextMate TextWrangler etc.	BBEdit Smultron TextMate TextWrangler etc.

Compression & Disk Images

Extension	Description	Decode	Encode
.7z	7-Zip Compressed File	EZ 7z 7zX The Unarchiver UnTar	EZ 7z 7zX
.ace	WinAce Compressed File	MacUnace unaceX The Unarchiver
.arc	Archive	OpenUp StuffIt Expander
.arj	Compressed Archive	OpenUp
.bin	MacBinary File	OpenUp StuffIt Expander The Unarchiver	BinJugglerCM StuffIt Standard StuffIt Deluxe
.bz, .bz2	Bzip UNIX Compressed File	Archive Utility OpenUp StuffIt Expander The Unarchiver UnTar	StuffIt Standard StuffIt Deluxe
.cab	Install Shield Compressed File	StuffIt Expander The Unarchiver
.cpt	Compact Pro Archive	OpenUp StuffIt Expander
.dmg	Disk Copy Disk Image	Apple Disk Utility Damage Isolation Pacifist	Apple Disk Utility DiscBlaze DropDMG EasyDMG FreeDMG
.gz, .gzip	Gzip Compressed Archive	Archive Utility OpenUp StuffIt Expander The Unarchiver UnTar	StuffIt Standard StuffIt Deluxe
.hqx	Macintosh BinHex 4 File	OpenUp StuffIt Expander The Unarchiver	StuffIt Standard StuffIt Deluxe
.img	Disk Copy Image (Classic Mac OS)	Apple Disk Utility
.iso	ISO-9660 CD Disc Image	Apple Disk Utility Burn DiscBlaze Toast	Apple Disk Utility Burn Burn Again DiscBlaze Toast
.lzh, lha	Compressed Archive File	OpenUp StuffIt Expander The Unarchiver
.mme, .mime	Multi-Purpose Internet Mail Extensions	OpenUp StuffIt Expander
.par	SmartPar	MacPAR deLuxe	MacPAR deLuxe
.pax	Macintosh Archive	Archive Utility
.pkg	Macintosh Installer	Mac OS X Pacifist unpkg	Apple PackageMaker Iceberg
.rar	WinRAR Compressed Archive	MacPAR deLuxe RAR RAR Expander SimplyRAR StuffIt Expander The Unarchiver	RAR RarMachine SimplyRAR
.sea	StuffIt Self Extracting Archive	StuffIt Expander	StuffIt Standard StuffIt Deluxe The Unarchiver
.sit, sitx	StuffIt Compressed Archive File	StuffIt Expander	StuffIt Deluxe
.tar	Tape Archive File	Archive Utility OpenUp Pacifist StuffIt Expander The Unarchiver UnTar	StuffIt Standard StuffIt Deluxe
.tbz	BZIP2 Compressed TAR	Archive Utility OpenUp StuffIt Expander The Unarchiver	StuffIt Standard StuffIt Deluxe
.tgz	UNIX Tar File Gzipped	Archive Utility OpenUp Pacifist StuffIt Expander The Unarchiver	StuffIt Standard StuffIt Deluxe
.uu, uue	Uuencoded	OpenUp StuffIt Expander	StuffIt Standard StuffIt Deluxe
.yenc	yEnc Encoded File	StuffIt Expander yEnc
.zip	Compressed Archive File	Archive Utility OpenUp StuffIt Expander The Unarchiver UnTar	Archive Utility StuffIt Standard StuffIt Deluxe
.Z	UNIX Compressed Archive File	Archive Utility OpenUp StuffIt Expander The Unarchiver	StuffIt Standard StuffIt Deluxe

Miscellany

Extension	Description	Read	Write
.dcr, .dir, .dxr	Director File	Director Shockwave Player	Director
.key	Keynote Presentation Wrapper	Keynote	Keynote
.ppt	PowerPoint File	NeoOffice OpenOffice PowerPoint	NeoOffice OpenOffice PowerPoint
.xls	Excel Worksheet	Excel NeoOffice OpenOffice	Excel NeoOffice OpenOffice

Denotes Mac OS X Intel Native

Denotes Mac OS X Intel & PPC Native

Denotes Mac OS X PPC Native

Denotes Mac OS 8/9 PPC Native

Denotes Mac OS 680x0 Native

Denotes Non-OS Specific Code

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