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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
NETSH - Extension Details
Date Added: January 01, 1970
File Extension:  .NETSH
Description 1: File extension .NETSH is associated with usermade Windows Net profiles. The standard Windows component netsh.exe utility creates such files. Start the command line and type the following: netsh dump>Netset.netsh. In the actual directory, create netsh file netset.netsh containing the users Net settings. Associate the .NETSH file extension with netsh.exe. Make multiple Net profiles like Friend, Work and Home, and easily modify Net settings with a tap of the .NETSH file that netsh.exe created.
File Type:   Configuration file
Mode: Binary
Program(s) to Open:  Windows: edited by text editor
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