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 macOS (OS X), and basically telling them, what kind of data and file type they are working with and what associated program opens the 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 tips.

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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's database.

sdf file icon.sdf - SQL Server compact edition database

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.

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

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

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

rar file extension icon file extension rar - WinRAR RAR compressed archive

jpg file extension icon file extension jpg - JPEG bitmap image

docx file extension icon file extension docx - Microsoft Word Open XML document

exe file extension icon file extension exe - Program executable

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

download file extension icon file extension download - Chrome partial download

default file extension icon file extension ris - Research Information Systems citation

default file extension icon file extension part - Partial download

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

default file extension icon file extension rpt - Report

default file extension icon file extension epub - Open Publication structure e-book

default file extension icon file extension xapk - Google Android XAPK application package

Recently updated file extensions

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

ct file extension icon file extension ct - IRIS CT image

do file extension icon file extension do - Java Servlet file

default file extension icon file extension keepsafe - Keepsafe folder

default file extension icon file extension plb - Arena Simulation Software picture library

default file extension icon file extension 3d - 3D drawing CAD data

default file extension icon file extension u2car - NFS:U2 car data

default file extension icon file extension yyp - GameMaker Studio project

default file extension icon file extension apple - Apple AppleSingle data

default file extension icon file extension appimage - Application portable image

default file extension icon file extension replay - Fortnite game replay

default file extension icon file extension tax2018 - TurboTax tax return 2018 file

default file extension icon file extension sav - Saved game file

fla file extension icon file extension fla - Editable Adobe Flash project (animation, movie, flash application)

default file extension icon file extension hol - Microsoft Outlook holiday calendar

default file extension icon file extension fsthumb - Wondershare Filmora thumbnail cache

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

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