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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
A2C - Extension Details
Date Added: January 01, 1970
File Extension:  .A2C
Description 1: .A2C file extension is linked with Alice Scene File an availably free instructional tool that is designed to teach newbie students computer application in 3D environment. Alice is an educational application that aims to easily teach students how to create animation for storytelling, interactive games or webbased videos. .A2C and Alice Scene File is owned and developed by Carnegie Mellon University.
File Type:   3D Graphics, CADCAM file
Mode: Binary
Program(s) to Open:  Windows & Mac: Alice Scene File
Common:
Extension: