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# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
5 File Associations

.M File Extension

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Objective-C Implementation File Icon
File Type
This file is saved in a plain text format.
Therefore, you can view the contents of the file in a text editor.
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Objective-C Implementation File
DeveloperApple
Popularity
3.3 (9 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryDeveloper Files
File Format Description

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

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.

Program(s) that open .M files
Linux Logo
Linux
Richardson EditRocket Icon Richardson EditRocketExternal Link
jEdit Icon jEditExternal Link
Icon Vim
Icon GNU Compiler Collection (GCC)
Icon Apple complier (cc)
Icon Stepstone compiler (objcc)
Updated 2/3/2011

Generic Icon
File Type
This file is saved in a plain text format.
Therefore, you can view the contents of the file in a text editor.
[x] Close  
MATLAB Source Code File
DeveloperThe MathWorks
Popularity
2.5 (4 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryDeveloper Files
File Format Description

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.

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

Program(s) that open .M files
Updated 1/16/2012

Generic Icon
File TypePC-98 Game Music File
DeveloperN/A
Popularity
2.0 (1 Vote) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryAudio Files
File Format Description

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.

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.

Program(s) that open .M files
Microsoft Windows Logo
Windows
Icon FMPMD2000External Link
Updated 5/20/2014

Generic Icon
File Type
This file is saved in a plain text format.
Therefore, you can view the contents of the file in a text editor.
[x] Close  
Mercury Source Code File
DeveloperThe Mercury Project
Popularity
2.0 (1 Vote) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryDeveloper Files
File Format Description

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

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.

Program(s) that open .M files
Updated 7/19/2011

Mathematica Input File Icon
File Type
This file is saved in a plain text format.
Therefore, you can view the contents of the file in a text editor.
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Mathematica Input File
DeveloperWolfram Research
Popularity
2.0 (3 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryData Files
File Format Description

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.

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

Program(s) that open .M files
Updated 10/19/2010