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.

trec file icon.trec - Camtasia Studio recorded session

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

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

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

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

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

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

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

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

default file extension icon file extension oxps - Microsoft OpenXPS document

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 crypt12 - WhatsApp Messenger message database

dll file extension icon file extension dll - Dynamic Link Library

dwg file extension icon file extension dwg - AutoCAD drawing

default file extension icon file extension thumbdata3--1967290299 - Android Thumbnail index

Recently updated file extensions

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

002 file extension icon file extension 002 - Compressed file from a multi-volume archive (part 2)

001 file extension icon file extension 001 - Compressed file from a multi-volume archive (part 1)

default file extension icon file extension c4d - CINEMA 4D file format

default file extension icon file extension exp - CATIA export data

default file extension icon file extension idraw - iDraw vector graphics

rpf file extension icon file extension rpf - Autodesk AutoCAD pattern definition

default file extension icon file extension catpart - CATIA part data

default file extension icon file extension mha - MetaImage medical format

default file extension icon file extension model - CATIA V4 model

default file extension icon file extension as4a - ActivInspire resource pack

default file extension icon file extension datx - DSPCon data

default file extension icon file extension installstate - .NET Framework Installation file

pfd file extension icon file extension pfd - Micrografx Optimal process flow diagram

pef file extension icon file extension pef - Pentax Digital Camera Raw Image Format

default file extension icon file extension bscp - Bitvise SSH Client (Tunnelier) profile

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

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