Extension for Multimedia Fusion 2 (MMF2), a visual game development program from Clickteam; adds extra features, objects, characters, or other resources to the program.
MFX files can also be used with Clickteam's The Games Factory.
Program(s) that open mfx files
Windows: Clickteam Multimedia Fusion 2 or The Games Factory
Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/mfx
