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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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HIL - Extension Details
Date Added: January 01, 1970
File Extension:  .HIL
Description 1: .HIL file extension is linked with DSJ3 Hill File. DSJL3 stands for Deluxe Ski Jump 3 which is a 3D game that allows players to compete with one another. There are 32 unique ski hills on the team and world cup categories. Players take full control on their ski jumpers by moving their mouse. DSJ3 is onlinebased so players can chat and play on a realtime basis with other players from around the world. .HIL file extension and Deluxe Ski Jump 3 are owned and developed by Mediamond.
File Type:   Game File
Mode: Binary
Program(s) to Open:  Windows & Mac: Mediamond Deluxe Ski Jump 3
Common:
Extension: