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
M1PG - Extension Details
Date Added: July 09, 2008
File Extension:  .M1PG
Description 1: The .M1PG extension identifies a Media 100 iFinishcreated video file. An M1PG file is a professional video editing and cutting application program. It is saved in the proprietary format. Opening M1PG files requires having the Media 100 program software installed. Media 100 Producer has replaced the iFinish program, and is now only available for Macintosh operating systems.
File Type:   Video file
Mode: Binary
Program(s) to Open:  Windows: Media 100 iFinish Macintosh: Media 100 Suite or Producer, Media 100 iFinish
Common:
Extension: