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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
MSF - Extension Details
Date Added: January 01, 1970
File Extension:  .MSF
Description 1: .MSF file extension is linked with Mozilla Thunderbird Mail Summary File. This is the file extension for the mail summary file utilized by Mozilla Thunderbird the acclaimed Mozilla email client that lets users import existing email and offers potent spam protection. It is easy to organize, customize and secure. Mozilla Thunderbird is owned and developed by Mozilla Foundation.
Description 2: .MSF file extension is linked with Miranda IM Skin File. It is the custom skin file for Miranda IM application. This file is used to customize the programs interface. It can also be used along with Modern Contact List Addon to change the appearance of the contact list. .MSF files are usually stored in this location: program filesMiranda IMskins folder.
File Type:   Settings File
Mode: Binary
Program(s) to Open:  Windows: Miranda IM
Common:
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