What is a M file
Files with the simple M extension contain code written in the Objective-C programming language. It is commonly used for the implementation of classes. The Apple operating systems Mac OS X and iOS (for iPhone, iPad, etc.) use Objective-C as one of the most common programming languages for the implementation of apps.
M files save the Objective-C code it contains in a plain text format. Since it is used for the implementation of applications, the initial directive inside the M file is "@implementation". What M files do is initializing all necessary functions and variables inside the file. These functions and variables are often times referenced by other files written in Objective-C as well as header files.
Here's a small, but not exhaustive list of programs that can open M documents:
- Apple compiler (Linux)
- Apple Xcode (Mac)
- Bare Bones BBEdit (Mac)
- GNU Compiler Collection (Mac & Linux)
- gVim (Windows)
- jEdit (Windows, Mac & Linux)
- MacroMates TextMate (Mac)
- MacVim (Mac)
- Richardson EditRocket (Windows, Mac & Linux)
- Stepstone compiler (Linux)
- Vim (Linux)
