I am new so the material room MATs are all i know how to make. But even if MAT Poses aren't included, the textures should be (I know I include all textures and even OBJ's with my stuff)
So, even if you can't load the MAT file, couldn't you load the materials manually and then create your own Material File in whatever software you use?

And up until now, I thought MAT Pose and MAT File were the same thing. I guess now I shall specify more clearly what is included with my products.

                                                                                                                    

Poser 10

Octane Render

Wings 3D