PCauthorities.com presents…
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
MFT - Extension Details
Date Added: January 01, 1970
File Extension:  .MFT
Description 1: .MFT file extension is linked with NTFS Master File Table File. This file defines the NTFS volume and it is where directory files on the NTFS volume are stored. .MTF file is a relational database table which carries various attributes of different files. It also serves as a "starting point and central management element of NTFS volume/s.
File Type:   System File
Mode: Binary
Program(s) to Open:  referenced/used by NTFS Master File Table
Common:
Extension: