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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
LIC - Extension Details
Date Added: May 10, 2008
File Extension:  .LIC
Description 1: .LIC file extension is linked with Software License. This file carries the registration information for software programs. .LIC files are commonly used with free or shareware applications. The file is created upon registration of the software through the company website. The standard .LIC file is supported by various programs. It is reference by another application and should not be manually opened.
File Type:   Document File
Mode: Binary
Program(s) to Open:  Windows & Mac: used by the software program which created the license file
Common:
Extension: