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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
WIN - Extension Details
Date Added: January 01, 1970
File Extension:  .WIN
Description 1: The .WIN file extension is tied to the FoxPro Window Settings. WIN files include FoxPro window definitions as well as statuses. With .WIN files, it is possible to back up the window settings. The issue of restoring these files is taken care of with the use of the command marked RESTORE WINDOW.
Description 2: .WIN is a file extension tied to the Windows Backup File. It refers to a backup of a particular Windows system file. What it does is restore the original file if it became corrupted or was deleted. The Windows Restore application program may reference .WIN files while the system restore process is in progress.
File Type:   Backup file
Mode: Binary
Program(s) to Open:  Windows: used by the system as a data recovery file if necessary
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