How can I convert an OBJ to a nsbmd file?

[popcornrulez]

I am trying to edit the some maps from Pokemon Black using Spiky's DS Map Editor. The problem is that I can export of map to OBJ format, but I can't import an edited OBJ file, it is only possible to import nsbmd files. So, I need a way to convert an OBJ file to nsbmd format.

[cpan1]

Check here.

[popcornrulez]

Check here.

I don't have 3ds max though.