What is .GMF file extension?
3D model file created in the Game Model Format (GMF), a format used by the Leadwerks game engine; contains both model and animation data; used for storing 3D game characters and their movements.
The Leaderwerks engine SDK has converters that can be used for making GMF files from .DAE, .FBX, .OBJ, and .3DW files.
You can see a list of software programs here on easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.