File extension or filename suffix is usually three, four or more characters at the end of computer file names divided by a dot.
File extensions are useful to computer programs and operating systems like Windows or OS X, and basically telling them, what kind of data and file type they are working with and what associated program opens this file.
File-extensions.org library contains thousands of file extensions and the database is still growing.
A large number of file type entries have detailed descriptions, including their current use and the list of programs that can open, view, edit, convert or play unknown file you search for.
Check out the recently published articles related to file extensions, tutorials or software reviews.
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File extension of the day
Random daily pick from file-extensions.org database.
.wpc - Microsoft Word and Write Windows 95 WordPad file converter file
For an overview of common file types,
visit the common file extensions page, which includes a list of the most important computer file formats you should know.
Popular file extensions
List of the most visited file extension records. Click on the link below for more details and software associations.
file extension pdf - Adobe Portable document format
file extension part - Partial download file
file extension flac - Audio files encoded by Flac - free lossless audio codec
file extension epub - Open Publication structure eBook file
file extension pages - iWork Pages document file
file extension apk - Google Android package file
file extension rar - WinRAR RAR compressed archive
file extension 3ga - Audio file for wireless networks
file extension pub - Microsoft Publisher document file
file extension mobi - Mobipocket eBook Format
file extension 002 - Compressed file from a multi-volume archive (part 2)
file extension crdownload - Google Chrome incomplete download file
file extension gadget - Windows sidebar gadget file
file extension json - Mozilla Firefox bookmark backup file
file extension dwg - AutoCAD Drawing file
file extension 264 - H.264/MPEG-4 AVC video file
file extension menc - Microsoft Windows Mobile encrypted file
file extension xlsx - Microsoft Excel 2007, Excel 2010 and Excel 2013 Open XML workbook file
file extension dlc - JDownloader download link container
file extension 001 - Compressed file from a multi-volume archive (part 1)
Recently updated file extensions
Existing and new file extensions are updated or added very often. The database is maintained and improved every day.
file extension spf - SlingPlayer saved favourites file
file extension zlx - ZoneAlarm Mailsafe renamed WSF file
file extension zlx - Atlantis Ocean mind word processing
file extension nch - On Hold message or music file
file extension nch - Microsoft Outlook Express email tree
file extension utw - BioWare Aurora engine waypoint file
file extension bet - BETA source file
file extension olk - Microsoft Outlook address book file
file extension wiz - Microsoft Office wizard file
file extension ~mn - Norton Commander menu backup file
file extension pat - AutoCAD hatch pattern file
file extension ods - OpenDocument spreadsheet file
file extension dotm - Microsoft Word 2007/ 2010 Open XML macro-enabled document template file
file extension dot - Microsoft Word 97 to 2003 document template file
file extension dot - Graphviz DOT language file
file extension dot - CorelDRAW lines definition file
file extension dot - Bert's Dinosaurs game file
file extension dotmenx - Egis encrypted Word DOTM file
file extension dothtml - Microsoft Word HTML document template file
file extension dotxenx - Egis encrypted Word DOTX file