CoolUtils Logo
German  Dutch  Spanish  Russian

File Formats - Descriptions and Meanings

There are hundreds of different file formats today and no one-fits-all solution. We add descriptions of all popular formats so that you could learn how and why it was developed. Just click the format to read the detailed review.

To convert a file with Coolutils Online Converter just click the Browse button and select the file. Then choose the target format and get your new file in few seconds right in your Downloads folder.

Here at Coolutils we are constantly expanding the supported formats list. If you have a file that can't be converted now, drop us a line. We will probably add it to the converter.

Document file formats

(Back to top)

File formatAuthorWhat programs use it?
DOC - Microsoft Word DocumentMicrosoftAbiWord
Apple Pages
AppleWorks
KWord
Microsoft Word
StarOffice
PDF - The most accurate online PDF conversion service that works fastAdobe SystemsAdobe Viewer
Ghostscript
Ghostview
Xpdf
CoolUtils PDF Viewer
DOCX - Free online DOCX converter with clean output filesMicrosoftMicrosoft Word 2007
Microsoft Word 2008 (MAC)
OxygenOffice Professional (Linux)
Word 2010
DOCM - DOCM file | CoolUtils - Free online file conversionMicrosoftAbiWord
Apple Pages
AppleWorks
KWord
Microsoft Word
StarOffice
RTF - Free online RTF converter with accurate resultsMicrosoftAbiWord
Kword
Microsoft Word
TextEdit
WordPad
ODT - ODT file | CoolUtils - Free online file conversionSun MicrosystemsMicrosoft Office 2007
Microsoft Office 2010
OpenOffice Writer
TXT - Convert TXT to DOC, PDF, TIFF, etc. online for free
TEXT
VariousNotepad
TextEdit
WordPad
XLS - XLS file | CoolUtils - Free online file conversionMicrosoftMicrosoft Excel
Microsoft Excel Viewer
OpenOffice
XLSX - Perfect XLSX online conversion site with clean outputMicrosoftMicrosoft Excel 2007
OpenOffice
OxygenOffice Progessional (Linux)
CSV - Convert CSV files right in the browser, free and online.MicrosoftThe CSV file format is very simple and supported by almost all spreadsheets and database management systems
XLSM - Microsoft Excel SpreadsheetMicrosoftMicrosoft Excel
Microsoft Excel Viewer
OpenOffice
ODS - OpenDocument spreadsheetSun MicrosystemsMicrosoft Office 2007
Microsoft Office 2010
OpenOffice Calc
HTML - Convert HTML to other file types at this free online serviceWorld Wide Web Consortium & WHATWGAny Web Browser (e.g. Internet Explorer, Safari, Firefox, Google Chrome)
MHT - Deatiled MHT file conversion. Free and online.World Wide Web Consortium & WHATWGAny Web Browser (e.g. Internet Explorer, Safari, Firefox, Google Chrome)
PPT - PPT file | CoolUtils - Free online file conversion
PPS
MicrosoftApple Keynote
Microsoft PowerPoint
OpenOffice
PPTX - Faultless PPTX converter that works free online
PPSX
MicrosoftApple Keynote
Microsoft PowerPoint
OpenOffice
ODP - Reliable free online converter of ODP files
FODP
Sun Microsystems and OasisCorel WordPerfect
KOffice
Lotus Symphony
NeoOffice
OpenOffice Impress
StarOffice
SXI - How to view SXI file? Free online solution.Sun MicrosystemsOpenOffice Impress
StarOffice
DBX - Outlook Express FormatMicrosoftOutlook Express
Windows Mail
Windows Live Mail
PST - Personal Storage TableMicrosoftMicrosoft Outlook
MSG - Error-free online MSG fileconverter from CoolutilsMicrosoftCoolUtils MSG Viewer
EML - 100% secure online EML converter by CoolutilsMicrosoftCoolUtils Mail Viewer
Apple Mail
IncrediMail
Microsoft Outlook
Microsoft Windows Live Mail
Mozilla Thunderbird
EMLX - Apple Mail EmailAppleApple's Mail
XPS - Open XML Paper SpecificationMicrosoft, Ecma InternationalChrome
Firefox
Microsoft Internet Explorer
Microsoft XPS Viewer
Safari
OXPS - Open XML Paper SpecificationMicrosoft
Ecma International

Image file formats

(Back to top)

File formatAuthorWhat programs use it?
AI - Meticulous AI file online conversion by CoolutilsAdobeAdobe Photoshop
Adobe Reader
Corel Paint Shop Pro
ODG - Open Document GraphicOASISApache OpenOffice
LibreOffice
BMP - Free online BMP converter used by millions
RLE, DIB
MicrosoftAdobe Photoshop
MS Paint
Microsoft Photo Editor
Paintbrush
JPG - The popular JPG online converter that is free
JPEG, JPE, JIF, JFIF, JFI
The JPEG Committee
JXR - The free way to convert JXR files
HDP, WDP
MicrosoftFast Picture Viewer
XnView
Windows Photo Viewer
ICO - Ingenious ICO converter - perfect image in secondsMicrosoftAdobe Photoshop
Microsoft Paint
Windows Picture and Fax Viewer
TIFF - Tagged image file format
TIF
Aldus, now Adobe SystemsCyberLink PowerDVD
InterVideo WinDVD
VideoLAN VLC Media Player
Windows Media Player
PNG - The best way to convert PNG images free onlinePNG Development GroupApple Preview
Corel Paint Shop Pro
GIMP - The GNU Image Manipulation Program (LINUX)
Microsoft Windows Photo Gallery Viewer
Safari
PICT - Free online PICT conversion service.
PCT, PIC
Apple ComputerQuickDraw
WMF - Speedy WMF online converter free of chargeMicrosoftMicrosoft Publisher
Microsoft Word
QuarkXPress
EMF - Speedy online EMF converter with perfect resultsMicrosoftMicrosoft Publisher
Microsoft Word
QuarkXPress
GIF - Convert GIF images online without registrationCompuServeAdobe Photoshop
Apple Preview
Corel Paint Shop Pro
Microsoft Windows Photo Gallery Viewer
TGA - Quick and easy online conversion of TGA files
VST, ICB, VDA, WIN
TruevisionAdobe Photoshop
Corel Paint Shop Pro
GIMP
Painter
PCX - Quick PCX conversion at this free online serviceZSoft CorporationAdobe Photoshop
Microsoft Paint
Windows Picture and Fax Viewer
SGI - Have to convert SGI file? Coolutils free online converter.
BW, RGB, RGBA, INTA, RLA, RPF
Paul Haeberli
JP2 - JPEG 2000
J2K, JPF, JPX, JPM, MJ2
Joint Photographic Experts GroupAdobe Photoshop
Apple Preview
Corel Paint Shop Pro
Microsoft Windows Photo Gallery Viewer
WEBP - Convenient WEBP online converter for youGoogleAdobe Photoshop
Google Chrome
Picasa
PSD - Save PSD as TIFF, JEPG, etc, using this free online serviceAdobe SystemsAdobe Illustrator CS6
Adobe InDesign CS6
Adobe Photoshop
GIMP
PDD - How to convert PDD file for free right in the browser?AdobeAdobe PhotoDeluxe
Adobe Photoshop
PCD - How to convert PXD to other file types right in the browser?KodakPhotoshop
IrfanView
CR2 - Canon RAW version 2Canon Inc.Adobe Photoshop
Adobe Photoshop Lightroom
Paint Shop Pro
Picasa
digiKam
NEF - Perfect online NEF file converter that works fastNikon Inc.Adobe Photoshop
Adobe Photoshop Lightroom
Paint Shop Pro
Picasa
digiKam
DICOM - Convert DICOM file online without registrationNational Electrical Manufacturers AssociationXnView
PCL - Printer Command LanguageHewlett-Packard
SVG - Fastest free online SVG converter
SVGZ
World Wide Web ConsortiumAdobe Photoshop
Apple Preview
Corel Paint Shop Pro
Corel SVG Viewer
XCF - Canonical XCF online file conversionGIMPGIMP
CinePaint
Inkscape
XPM - Blazing fast XPM file conversion from CoolutilsBULL ResearchACDSee
Amaya
CorelDRAW
GIMP
PS - PostScriptAdobe SystemsAdobe Acrobat
LibreOffice Draw
EPS - Free online EPS file conversion with splendid outputAdobe SystemsAdobe Acrobat
CorelDRAW
LibreOffice Draw
XWD - Free XWD file conversion service for youX Window SystemGIMP

Audio file formats

(Back to top)

File formatAuthorWhat programs use it?
RA - RA file | CoolUtils - Free online file conversionReal NetworksRealNetworks RealPlayer
RAM - How to convert RAM file without registration?Real NetworksRealNetworks RealPlayer
RM - RealMedia Streaming MediaReal NetworksRealNetworks RealPlayer
RMVB - Secure online RMVB file conversion service by CoolutilsRealNetworksRealPlayer
VLC Media Player
AC3 - AC3 Audio FileDolby DigitalQuickTime Player
VLC Media Player
Windows Media Player
3GA - How to view 3GA? Try this free online platform.3rd Generation Partnership Project (3GPP)QuickTime Player
VLC Media Player
Windows Media Player
3GPP - 3GPP file | CoolUtils - Free online file conversion3rd Generation Partnership Project (3GPP)QuickTime Player
VLC Media Player
Windows Media Player
3GP - 3GPP Multimedia File3rd Generation Partnership Project (3GPP)QuickTime Player
VLC Media Player
Windows Media Player
OPUS - Error-free OPUS file online converterXiph.Org FoundationVLC media player
FFMpeg
AIFF - Free AIFF converter that works right on page
AIF, AIFC
Apple IncApple QuickTime
VLC media Player
Winamp
Windows Media Player
WMA - Windows Media AudioMicrosoftVLC media player
MP3 - Superior online MP4 conversion absolutely freeFraunhofer InstituteRealOne
WinAmp
Windows Media Player
iTunes
WAV - High standard free WAV converter to work onlineMicrosoft & IBMCyberLink PowerDirector
Microsoft Windows Media Player
Roxio Creator 2009
OGG - User-friendly fee OGG converter used worldwide.Xiph.Org FoundationApple QuickTime Player
Real Player
Windows Media Player
MPC - Quality MPC converter that runs online and free
MPP, MP+
Andree BuschmannVLC media player
FFMpeg
FLAC - Free online FLAC converter for music fansXiph.Org FoundationReal Player
VLC Media Player
Windows Media Player
MPP - Handy MPP file conversion service for beginnersMicrosoftMicrosoft Project
APE - Brilliant APE online converter that works freeMatthew T. AshlandVLC media player
FFMpeg
AAC - Free online AAC converter loved by music fans worldwideA combination of Fraunhofer IIS, AT&T Bell Laboratories, Dolby and Sony CorporationKMPlayer
RealPlayer
VideoLAN VLC Media Player
Windows Media Player
iTunes
MP4 - MPEGMoving Picture Experts GroupApple QuickTime Player
Apple iTunes
Microsoft Windows Media Player
VideoLAN VLC Media Player
M4A - Error-free online M4A file conversion platformAppleApple QuickTime Player
Apple iTunes
Microsoft Windows Media Player
OFR - How to view OFR file? Try this free online service.Florin GhidoVLC media player
FFMpeg
SPX - Free online solution to convert SPX file Xiph.Org Foundation, Jean-Marc ValinVLC media player
FFMpeg
TTA - How to open and convert TTA files? Free solution.Aleksander DjourikVLC media player
FFMpeg
WV - WV online file conversion engine for music fansDavid BryantVLC media player
FFMpeg

Video file formats

(Back to top)

File formatAuthorWhat programs use it?
AVI - Audio Video InterleaveMicrosoftALLPlayer
Apple QuickTime Player
Microsoft Windows Media Player
VideoLAN VLC Media Player
WMV - Windows Media VideoMicrosoftMPlayer
Microsoft Windows Media Player
PowerDVD
RealPlayer
VideoLAN VLC Media Player
RMVB - Secure online RMVB file conversion service by CoolutilsRealNetworksRealPlayer
VLC Media Player
VOB - Video Object FileAppleAdobe Flash Player (standalone program)
Web browser with the Flash plug-in installed
MOV - Apple QuickTime MovieAppleApple QuickTime Player
CyberLink PowerDirector
Roxio Easy Media Creator
MPG - Moving Picture Experts Group FileISO, IECVideoLAN VLC Media Player
Windows Media Player
M4V - MPEGAppleApple QuickTime Player
Apple iTunes
VLC Media Player
MP4 - MPEGMoving Picture Experts GroupApple QuickTime Player
Apple iTunes
Microsoft Windows Media Player
VideoLAN VLC Media Player
3GP - 3GPP Multimedia File3rd Generation Partnership Project (3GPP)QuickTime Player
VLC Media Player
Windows Media Player
WEBM - Multimedia Container FormatGoogle (Previously developed by On2, Xiph, and Matroska)Google Chrome
Mozilla Firefox
VLC Media Player
MTS - AVCHD Video FileSony, PanasonicVideoLAN VLC Media Player
Windows Media Player
ASF - Advanced Streaming FormatMicrosoftReal Player
VLC Media Player
Windows Media Player
MKV - Matroska Multimedia ContainerSteve LhommeVLC Media Player
3GP - 3GPP Multimedia File3rd Generation Partnership Project (3GPP)QuickTime Player
VLC Media Player
Windows Media Player
3G2 - 3GPP2 Multimedia File3rd Generation Partnership Project 2Apple QuickTime Player
GOM Player
Microsoft Media Player Classic
Totem
VideoLAN VLC Media Player
MOD - Hard disk camera movieJVC/PanasonicQuicktime Player
VLC Media Player
Windows Media Player
FLV - Flash videoAdobe Systems IncorporatedFFDShow
Microsoft Windows Photo Gallery Viewer
VideoLAN VLC Media Player
Windows Media Player
SWF - Macromedia Flash Format FileFutureWave SoftwareAdobe Flash Player (standalone program)
Web browser with the Flash plug-in installed

eBook file formats

(Back to top)

File formatAuthorWhat programs use it?
CBZ - Comic Book Archive FileVariousCDisplay
ComicFlow
Perfect Viewer
CBR - Comic Book RAR ArchiveVariousCDisplay
ComicFlow
Perfect Viewer
CBC - eBook FormatVariousComic Book Collector
CHM - Compiled HTML Help FileMicrosoftBeyond CHM
Internet Explorer
Microsoft Reader
Mozilla Firefox
DJVU - DjVu FileAT&T Labs - ResearchDjVuLibre DjView
LizardTech Browser Plug In
MacDjView Desktop Viewer
WinDjView
EPUB - Open eBook FileInternational Digital Publishing Forum (IDPF)Adobe Digital Editions
Apple iBooks
Mobipocket Reader Desktop
Sony Reader
FB2 - FictionBook 2.0 FileFictionBookApple iBooks
Calibre
Cool Viewer
HTML - Convert HTML to other file types at this free online serviceWorld Wide Web Consortium & WHATWGAny Web Browser (e.g. Internet Explorer, Safari, Firefox, Google Chrome)
LIT - Microsoft eBook FileMicrosoftMicrosoft Reader
LRF - Sony Portable Reader FileSonySony Reader
MOBI - Mobipocket eBookMobipocket / AmazonAmazon Kindle
Apple iBooks
Mobipocket Reader Desktop
ODT - ODT file | CoolUtils - Free online file conversionSun MicrosystemsMicrosoft Office 2007
Microsoft Office 2010
OpenOffice Writer
PDF - The most accurate online PDF conversion service that works fastAdobe SystemsAdobe Viewer
Ghostscript
Ghostview
Xpdf
CoolUtils PDF Viewer
PRC - Mobipocket eBook FileMobipocketAmazon Kindle
Apple iBooks
Mobipocket Reader Desktop
PDB - Palm Media eBook FilePalm, Inc.ICE Book Reader
Palm Reader
PML - eBook FilePalm, Inc.Adobe Framemaker
Dropbook
MakeBook
RB - RocketEdition eBook FileNuvoMediaBook Designer
GEB Librarian
RB2Project
RTF - Free online RTF converter with accurate resultsMicrosoftAbiWord
Kword
Microsoft Word
TextEdit
WordPad
AZW3 - Amazon KF8 eBook FileAmazonKindle Fire
Kindle Reader
Kindle for Android
Kindle for iOS
OEB - Open eBook FileInternational Digital Publishing Forum (IDPF)Adobe Digital Editions
Apple iBooks
Sony Reader
LRF - Sony Portable Reader FileSonySony Reader
MOBI - Mobipocket eBookMobipocket / AmazonAmazon Kindle
Apple iBooks
Mobipocket Reader Desktop
PDB - Palm Media eBook FilePalm, Inc.ICE Book Reader
Palm Reader
PML - eBook FilePalm, Inc.Adobe Framemaker
Dropbook
MakeBook
RB - RocketEdition eBook FileNuvoMediaBook Designer
GEB Librarian
RB2Project

CAD file formats

(Back to top)

File formatAuthorWhat programs use it?
DWG - Convert DWG file free right in the browserAutodeskAdobe Illustrator
AutoCAD
Autodesk DWG TrueView
CorelCAD
DWF - Design Web FormatAutodeskAutoCAD
Inventor
Revit Architectural
DXF - AutoCAD Drawing Interchange FormatAutodeskAdobe Illustratror
AutoCAD
CorelCAD
Open Office
PaintShop Pro
PLT - PLT file | CoolUtils - Free online file conversionHewlett-Packard
CGM - Canonical online conversion of CGM filesANSI, ISO/IEC, W3C
Site Map  |  Contacts |  Press Center | Resellers | About |  Privacy Policy |    Copyright © 1998-2019 CoolUtils Development. All rights reserved.