Home : File Types : M File (5 File Associations)

.M File Extension

File Type 1MATLAB Source Code File

DeveloperThe MathWorks
Popularity
3.5 (12 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryDeveloper Files
FormatText

Text

This file is saved in a plain text format. You can open and view the contents of this file using a text editor.

What is a M file?

Text file used by MATLAB, an application used for mathematical computations; can store a script, class, or an individual function in the MATLAB language; used for executing algorithms, plotting graphs, and performing other mathematical operations.

More Information

A MATLAB file with the ".m" extension is referred to as an "M-File."

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Programs that open M files
Windows
The MathWorks MATLAB
Notepad++
Mac
The MathWorks MATLAB
Linux
The MathWorks MATLAB
Updated 1/16/2012

File Type 2Objective-C Implementation File

DeveloperApple
Popularity
3.4 (32 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryDeveloper Files
FormatText

Text

This file is saved in a plain text format. You can open and view the contents of this file using a text editor.

What is a M file?

An M file is a class implementation file used by programs written in Objective-C. It begins with the @implementation directive and initializes variables and functions that can be referenced by other Objective-C source files. M files may also reference header (.H) files.

More Information

Objective-C is most commonly used to implement applications for Apple's Mac OS X and iOS operating systems. Apple's Cocoa API provides the Objective-C programming interface for Mac OS X, and the iOS API provides the programming interface for the iOS platform.

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Programs that open M files
Windows
Richardson EditRocket
jEdit
gVim
Mac
Apple Xcode
Bare Bones BBEdit
MacroMates TextMate
Richardson EditRocket
jEdit
MacVim
GNU Compiler Collection (GCC)
Linux
Richardson EditRocket
jEdit
Vim
GNU Compiler Collection (GCC)
Apple complier (cc)
Stepstone compiler (objcc)
Updated 8/24/2016

File Type 3Mathematica Input File

DeveloperWolfram Research
Popularity
2.7 (7 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryData Files
FormatText

Text

This file is saved in a plain text format. You can open and view the contents of this file using a text editor.

What is a M file?

Contains functions or a set of instructions used by the Mathematica, a program for creating and running mathematical functions; saved in a text format, which can be viewed and edited with a basic text editor.

More Information

Files named "init.m" are initialization files that contain settings that are loaded when the Mathematica program is opened.

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Programs that open M files
Windows
Wolfram Research Mathematica
Microsoft Notepad
Notepad++
Other text editor
Mac
Wolfram Research Mathematica
Apple TextEdit
Other text editor
Linux
Wolfram Research Mathematica
gedit
Leafpad
Other text editor
Updated 10/19/2010

File Type 4Mercury Source Code File

DeveloperThe Mercury Project
Popularity
2.0 (4 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryDeveloper Files
FormatText

Text

This file is saved in a plain text format. You can open and view the contents of this file using a text editor.

What is a M file?

Source code file written using Mercury, a functional programming language that was developed at the University of Melbourne, Australia; saved using plain text formatting and uses syntax similar to Prolog.

More Information

Mercury was written in order to provide a robust language for large real world applications. It includes several error-checking features not provided by other logic programming languages. For example, the language incorporates static analysis that can catch type checking errors before runtime. This enables greater assurance over the correctness of the program and also allows the compiler to generate more efficient code. However, the developer must specify each of the "type," "mode," and "determinism" constructs while programming, which is not necessarily required by other languages.

NOTE: The developmental version of the Mercury compiler is currently distributed in a source code format and does not include compiler binaries. However, a Windows port of Mercury, called winmercury, includes binaries. It also includes Vim syntax highlighting files for source code editing.

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Programs that open M files
Windows
winmercury
gVim
Microsoft Notepad
Other text editor
Linux
Mercury Compiler
GNU Emacs
Beaver
Vim
Other text editor
Updated 7/19/2011

File Type 5PC-98 Game Music File

DeveloperN/A
Popularity
1.7 (3 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryAudio Files
FormatN/A

Unknown

File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.

What is a M file?

Sound file format used by Japanese PC-98 computers and emulators; contains synthesizer music that can be used as instruments to create songs; referenced in order to know what music to play.

More Information

NOTE: In order to play M files with FMPMD2000, you need to download the WinFMP.dll and PMDWin.dll files, which are available from the same location.

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Programs that open M files
Windows
FMPMD2000
Updated 5/20/2014

.M Extension Information

This page contains information about the file extension M and its known file associations. Our goal is to help you understand what a *.m file is and how to open it.

All file types, file format descriptions, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and do not publish any information we have not verified.

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