How to optimize color texture in 3D model scanned with Artec Eva

[cokreeate]

Now I worked on the model in Mudbox:
a) some 3D modifications in the 3D mesh
b) some modifiactions in the texture layer

Now I would like to export from mudbox the following file set
.obj
.mtl
.jpg

How to do so? I can not find this function?

If you use zbrush we can give you a hand.
We also do 3d scanning of people.