Not sure off the top of my head.  You could do a .obj and then in a T-Pose as the export for the .obj and a .bvh export (need Fenrics add on I think), .BVH files I think have skeletons.  You will have to tweek the bones/joints once imported.  I am not sure about the .mdd format (again fenric add on).  HOpefully someone will know as I haven't worked with .mdd