I exported the model of one character, but I ran into another problem, how to change the file format from MDL on OBJ or DFF?

Thanks

And so, let's start with the fact that I need a 3d model of a character named Michael Grant, using the MDL Editor program, I opened the file modelspc.mdl from there I exported the files mic_hed.mdl and mic_bod.mdl, this is the body and the head, but how can I remake them from the mdl to dff, that is, I need these models in dff formats, but there is a problem, 3ds Max does not work, are there other options?