MHM-files are MakeHuman specific, and just contain the Information how models in MakeHuman look like. If you want to use a model in other programs, like Blender, you need to export from MakeHuman (see here: http://www.makehuman.org/doc/node/load_ ... xport.html ). Perhaps search for VscorpianC on YoutTube for some good beginner tutorials.