File extensions sample

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.
 

Latest articles

Check out the recently published articles related to file extensions, tutorials or software reviews.

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I want to convert from      to    

Begin your search by entering the source and target file type specified by their file extensions. For example simply try flac to mp3.

File extension of the day

Random daily pick from file-extensions.org database.

z01 file icon.z01 - Split Multi-volume ZIP compressed file archive (part 2)

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.

pdf file extension icon file extension pdf - Adobe Portable document format

apk file extension icon file extension apk - Google Android application package

default file extension icon file extension oxps - Windows 8 OpenXPS document

default file extension icon file extension part - Partial download file

crdownload file extension icon file extension crdownload - Google Chrome incomplete download file

mp3 file extension icon file extension mp3 - Compressed audio and music file, mp3 songs or ringtones

vcf file extension icon file extension vcf - vCard file

xlsx file extension icon file extension xlsx - Microsoft Excel Open XML workbook file

avi file extension icon file extension avi - Audio Video Interleave movie file

flac file extension icon file extension flac - Audio files encoded by Flac - free lossless audio codec

numbers file extension icon file extension numbers - Apple Numbers spreadsheet file

mp4 file extension icon file extension mp4 - MPEG-4 video file format

default file extension icon file extension spb - Samsung Kies phone contacts library

default file extension icon file extension crypt8 - WhatsApp Messenger message database file

pages file extension icon file extension pages - Pages document

Recently updated file extensions

The file extension database is maintained and improved on daily basis. Here you can check last updated entries.

dwg file extension icon file extension dwg - AutoCAD drawing file

default file extension icon file extension mobi - Mobipocket eBook format

default file extension icon file extension wotreplay - World of Tanks battle replay

jpg file extension icon file extension jpg - JPEG bitmap image format

isz file extension icon file extension isz - UltraISO compressed disk image

default file extension icon file extension snb - S Note note (old version)

default file extension icon file extension trec - Camtasia Studio recorded session

rem file extension icon file extension rem - BlackBerry encrypted data file

default file extension icon file extension dv4 - Bosch Security Systems CCTV video

srt file extension icon file extension srt - SubRip video subtitle format

default file extension icon file extension gdoc - Link to Google Docs web application document

json file extension icon file extension json - Mozilla Firefox bookmark backup

mkv file extension icon file extension mkv - Matroska multimedia container

doc file extension icon file extension doc - Microsoft Word 97 to 2003 document

eml file extension icon file extension eml - Email message

Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

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