Export Unwrapped UV to 3Ds

Im having some problems with this.
If i export as an .OBJ i can see the unwraped UVs but the seams are not there, actually, all the edges are seam…If i export is as a 3Ds file, the seam is there but the UVs arent unwrapped.

How do i unwrap UVs in blender and export the model with the uwrapped UVs to 3Ds?
Any Tutorial or something?

Thx in advance