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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
ZM2 - Extension Details
Date Added: January 01, 1970
File Extension:  .ZM2
Description 1: The .ZM2 extension is used for the second recording of a Super Nintendo game (SNES) that is played with the aid of a ZSNES emulator. This file allows for playback within the ZSNES program. The first movie bears the .ZM1 extension while the second recording uses .ZM2. .ZM3 is the extension used for the third movie. With single ZSNES video files, go ahead and attach the .ZMV file extension.
File Type:   Video file
Mode: Binary
Program(s) to Open:  Windows and Unix: ZSNES
Common:
Extension: