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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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QSG - Extension Details
Date Added: January 01, 1970
File Extension:  .QSG
Description 1: File extension .QSG has to do with Quest Saved Game. In Quest, users are allowed to create text adventure games minus having to learn any type of programming. These text adventures are known to some as interactive fiction. With the .QSG file format, users can make their own interactive story or interactive world. The game can be edited with the help of the QDK editor that comes with the package.
File Type:   Game file
Mode: Binary
Program(s) to Open:  Open with Quest Saved Game program
Common:
Extension: