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The File Extension Library

What is a file extension?

Short answer: it's the set of letters after the period (.) in the name of a file.

Long answer: File extensions signify the file format of a file. It tells the operating system (OS) how data was stored in the file. Not all OS, require a file extension though. For instance, this is optional in Unix, but is mandatory with MS-DOS and Windows systems.

In most file formats the file type is actually defined by the contents (first bytes, file structure), but extensions are used to define the application that is used for opening the file.

Below is a detailed database of thousands of file extensions our team has compiled for you. Feel free to browse!


Browse all Extensions:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
MOV - Extension Details
Date Added: January 01, 1970
File Extension:  .MOV
Description 1: .MOV file extension is linked with AutoCAD AutoFlix Movie. AutoFlix was an AutoCAD addon which made animations and presentations using 3D capabilities of Release 10. The animator contains a set of commands which ran in AutoCAD editor for defining sequences and animation paths. .MOV file extension and AutoCAD are owned and developed by Autodesk Inc.
Description 2: .MOV file extension is linked with Apple QuickTime Movie. It is a common multimedia format that is often utilized for saving video and movie files. .MOV file uses proprietary compression algorithm which is developed by Apple Computer. It is compatible with Mac and Windows platforms. This file opens directly. The Apple software utilizes .MOV file extension as a proprietary file format.
File Type:   Movie, Video & Multimedia File
Mode: Binary
Program(s) to Open:  Windows: Apple QuickTime Player, CyberLink PowerDirector, Roxio Easy Media Creator; Mac: Apple QuickTime Player, Roxio Toast
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