There are a huge number of different computer file formats available - here we describe some of the most popular - Click on a file extension for more detailed information.

If you want to convert a file from one format to another we make that super-easy to do at Zamzar - just upload your file and let us do all the hard work. Zamzar supports conversion between most of the formats below !

We're adding support for new formats all the time - if there's a format that you'd like us to support why not contact us and we'll do our best to add it.

Document file formats	(Back to top)
File format	Author	What programs use it ?
csv - Comma Separated Values	Microsoft	The CSV file format is very simple and supported by almost all spreadsheets and database management systems
doc - Microsoft Word Document	Microsoft	AbiWord Apple Pages AppleWorks KWord Microsoft Word StarOffice
docx - Microsoft Word 2007 Document	Microsoft	Microsoft Word 2007 Microsoft Word 2008 (MAC) OxygenOffice Professional (Linux) Word 2010
eps - Encapsulated PostScript
html - Hypertext Markup Language	World Wide Web Consortium & WHATWG	Any Web Browser (e.g. Internet Explorer, Safari, Firefox, Google Chrome)
key - Apple iWork '09 Keynote Presentation
key.zip - Apple iWork '05-'08 Keynote Presentation
mdb - Microsoft Access Database
mpp - Microsoft Project Document
numbers - Apple iWork '09 Numbers Spreadsheet
numbers.zip - Apple iWork '08 Numbers Spreadsheet
odp - OpenDocument presentation	Sun Microsystems and Oasis	Corel WordPerfect KOffice Lotus Symphony NeoOffice OpenOffice Impress StarOffice
ods - OpenDocument spreadsheet	Sun Microsystems	Microsoft Office 2007 Microsoft Office 2010 OpenOffice Calc
odt - OpenDocument Text Document
pages - Apple iWork '09 Pages Document
pages.zip - Apple iWork '05-'08 Pages Document
pdf - Portable Document Format	Adobe Systems	Adobe Viewer Ghostscript Ghostview Xpdf gPDF
pps - Microsoft PowerPoint Presentation
ppt - Microsoft PowerPoint Presentation	Microsoft	Apple Keynote Microsoft PowerPoint OpenOffice
pptx - Microsoft PowerPoint 2007 Presentation	Microsoft	Apple Keynote Microsoft PowerPoint OpenOffice
ps - Postscript document
pub - Microsoft Publisher
rtf - Rich Text Format	Microsoft	AbiWord Kword Microsoft Word TextEdit WordPad
swf - Macromedia Flash Format File	FutureWave Software	Adobe Flash Player (standalone program) Web browser with the Flash plug-in installed
txt - Text document
vsd - Visio Drawing
wks - Microsoft Works Spreadsheet
wpd - WordPerfect Document	Corel	Corel WordPerfect Microsoft Word OpenOffice Writer
wps - Microsoft Works Document	Microsoft	Microsoft Word Microsoft Works Word Processor NeoOffice OxygenOffice Works Converter
xls - Microsoft Excel Spreadsheet	Microsoft	Microsoft Excel Microsoft Excel Viewer OpenOffice
xlsx - Microsoft Excel 2007 Spreadsheet	Microsoft	Microsoft Excel 2007 OpenOffice OxygenOffice Progessional (Linux)
xml - Extensible Markup Language

Image file formats	(Back to top)
File format	Author	What programs use it ?
bmp - Windows bitmap	Microsoft	Adobe Photoshop MS Paint Microsoft Photo Editor Paintbrush
emf - Windows Enhanced Metafile
gif - Compuserve graphics interchange	CompuServe	Adobe Photoshop Apple Preview Corel Paint Shop Pro Microsoft Windows Photo Gallery Viewer
ico - Windows Icon
jpg - JPEG compliant image	The JPEG Committee	Adobe Photoshop Apple Preview Corel Paint Shop Pro Microsoft Windows Photo Gallery Viewer
pcx - Paintbrush Bitmap Image
png - Portable Network Graphic	PNG Development Group	Apple Preview Corel Paint Shop Pro GIMP - The GNU Image Manipulation Program (LINUX) Microsoft Windows Photo Gallery Viewer Safari
tga - Truevision Targa Graphic	Truevision	Adobe Photoshop Corel Paint Shop Pro GIMP Painter
thumbnail - Thumbnail image
tiff - Tagged image file format	Aldus, Adobe Systems	CyberLink PowerDVD InterVideo WinDVD VideoLAN VLC Media Player Windows Media Player
wbmp - Wireless Bitmap File Format
webp - Lossily compressed image file
wmf - Windows Metafile

Music file formats	(Back to top)
File format	Author	What programs use it ?
aac - Advanced Audio Coding File	A combination of Fraunhofer IIS, AT&T Bell Laboratories, Dolby and Sony Corporation	KMPlayer RealPlayer VideoLAN VLC Media Player Windows Media Player iTunes
ac3 - AC3 Audio File
flac - Free Lossless Audio Codec
m4a - Compressed video file
mp3 - Compressed audio file	Moving Picture Experts Group	RealOne WinAmp Windows Media Player iTunes
ogg - Ogg Vorbis Compressed Audio File
ra - RealMedia Streaming Media	Real Networks	RealNetworks RealPlayer
ram - RealMedia Metafile	Real Networks	RealNetworks RealPlayer
rm - RealMedia Streaming Media	Real Networks	RealNetworks RealPlayer
wav - Windows audio file	Microsoft & IBM	CyberLink PowerDirector Microsoft Windows Media Player Roxio Creator 2009

Video file formats	(Back to top)
File format	Author	What programs use it ?
3g2 - 3GPP2 Multimedia File	3rd Generation Partnership Project 2	Apple QuickTime Player GOM Player Microsoft Media Player Classic Totem VideoLAN VLC Media Player
3gp - 3GPP Multimedia File
asf - Advanced Streaming Format
avi - Windows video file	Microsoft	ALLPlayer Apple QuickTime Player Microsoft Windows Media Player VideoLAN VLC Media Player
flv - Flash video	Adobe Systems Incorporated	FFDShow Microsoft Windows Photo Gallery Viewer VideoLAN VLC Media Player Windows Media Player
gvi - Google video file	Google	Google VideoPlayer VideoLAN VLC Media Player Windows MediaPlayer classic
ipad - MPEG-4 (H264) Video File
iphone - MPEG-4 (H264) Video File
ipod - MPEG-4 Video File
m4v - MPEG-4 Video File
mov - Apple QuickTime Movie	Apple	Apple QuickTime Player CyberLink PowerDirector Roxio Easy Media Creator
mod - Hard disk camera movie
mp4 - MPEG-4 Video File	Moving Picture Experts Group	Apple QuickTime Player Apple iTunes Microsoft Windows Media Player VideoLAN VLC Media Player
mpg - Moving Picture Experts Group File	ISO, IEC	VideoLAN VLC Media Player Windows Media Player
rmvb - RealVideo Variable Bit Rate File
vob - Video Object File	Apple	Adobe Flash Player (standalone program) Web browser with the Flash plug-in installed
webm - Multimedia Container Format
wmv - Windows Media Video	Microsoft	MPlayer Microsoft Windows Media Player PowerDVD RealPlayer VideoLAN VLC Media Player

e-Book file formats	(Back to top)
File format	Author	What programs use it ?
cbc - eBook Format
cbr - Comic Book RAR Archive
cbz - Comic Book Archive File
chm - Compiled HTML Help File
epub - Open eBook File
fb2 - FictionBook 2.0 File
lit - Microsoft eBook File
lrf - Sony Portable Reader File
lzh - Compressed Archive File
mobi - Mobipocket eBook
oeb - Open eBook File
pdb - Palm Media eBook File
pml - eBook File
prc - Mobipocket eBook File
rb - RocketEdition eBook File

Compressed file formats	(Back to top)
File format	Author	What programs use it ?
7z - 7-Zip Compressed File
cab - Cabinet File
rar - WinRAR Compressed Archive
tar - Tape Archive File
tar.bz2 - Bzip 2 UNIX Compressed File
tar.gzh - Gzip Compressed Archive
tar.gz - Gzip Compressed Archive
tcr - Psion eBook File
yz1 - DeepFreezer Compressed Archive
zip - Compressed Archive File

CAD file formats	(Back to top)
File format	Author	What programs use it ?
dwg - AutoCAD Drawing Database
dxf - AutoCAD Drawing Interchange Format