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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:
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ZST - Extension Details
Date Added: July 09, 2008
File Extension:  .ZST
Description 1: ZST files are game files saved by the Super Nintendo emulator for Linux and Windows. A file with the .ZST extension is used for storing game progress in a saved state so users can open games and resume playing them at a later date. Snes9x emulator now supports files bearing the .ZST extension.
File Type:   Game file
Mode: Binary
Program(s) to Open:  Macintosh: Snes9x Windows: ZSNES, Snes9x Unix: Snes9x, ZSNES
Common:
Extension: