Export unreal skeletal mesh

I want to use the same skeletal mesh has the one in unreal since it is perfect for what I need but I am not sure how to export to 3ds max.

If you mean the default Mannequin mesh, check out this thread for a biped based solution by Obihb: 3DSMax Biped Rig for HeroTPP (Default Blue Man)... - Animation - Unreal Engine Forums . It should also be good to go to create animations for most characters that use the Epic skeleton.