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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
M3G - Extension Details
Date Added: January 01, 1970
File Extension:  .M3G
Description 1: M3G is the file extension linked to the Nokia Phone Screensaver. It has to do with 3D games or screensavers saved in Mobile 3D Graphics (or M3G) format. The Nokia Series 40 cellular phones along with other Nokia phones that do not utilize the Symbian OS use this file extension. M3G format is known to be compatible with OpenGLES and mobile Java platforms. Exporting .3DS or 3ds Max files as M3G files is possible with the help of an M3G Exporter plugin.
File Type:   Nokia Mobile 3D Graphics File
Mode: Binary
Program(s) to Open:  Windows: Java M3G development tools, Nokia mobile phone software and Autodesk 3ds Max with M3G Exporter plugin
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