Hi hj,
The difference between CC OBJ and 3DX OBJ is the cell shape of mesh. CC OBJ is quad mesh, which is used for body morph creation. If you would like to do some modification such as facial expression in 3DX, you can try this way: export iAvatar from CC --> import it to 3DX --> export to OBJ. :)
hj (1/18/2017)
Thank you Peter
i know this, but i would like to know, why you did this diffenret OBJ export ????
best
hj