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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
YIF - Extension Details
Date Added: January 01, 1970
File Extension:  .YIF
Description 1: .YIF is an extension tied to Mungyodance Game Data. Mungyodance is a term used to describe the rhythm game that came from VulpVIBE Records and Monakai Entertainment. The .YIF files are game data and are in reference to YIFF. For more information on YIFF and what it means, users can check out WikiFur.
File Type:   Game file
Mode: Binary
Program(s) to Open:  Associated application: Mungyodance Game Data and WikiFur For The Furry Community
Common:
Extension: