The MA file header starts with comments that give the creation information and date modified. These are ignored as they are just for information.
MA files are saved in Maya’s plain text format mayaAscii. You can open an MA file in any text editor. One drawback is that as they contain long lists of settings and commands, the files can be large.
Another use of the MA extension is by Mathematica software for scientific computation and modeling to store data as ASCII text. In addition, the game Diablo II stores game maps as MA files.
To open an MA file you need suitable software like Maya. Double click the MA file icon to open it. If your operating system has an appropriate application to support it and there is an association between the file and program, it should open.
Install Maya if you get errors opening MA files even though Maya is installed. Make sure your software is up-to-date, as newer versions may support more formats. Maya is backward compatible.
Be cautious of MA files from unknown sources, as the extension can be used by various programs including potentially harmful software.
Autodesk Maya
Blender