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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
CIN96LM - Extension Details
Date Added: January 01, 1970
File Extension:  .CIN96LM
Description 1: .CIN96LM file extension is linked with Microsoft Cinemania File. This is the file extension utilized by Microsoft Cinemania is an interactive movie guide that provides detailed information about the latest movies and their creators. It offers over 20,000 crossreferenced titles which makes it informative and entertaining at the same time.
File Type:   Data File
Mode: ASCII
Program(s) to Open:  Windows: Microsoft Cinemania
Common:
Extension: