ASE format is the way to go:
http://wiki.beyondunreal.com/wiki/ASE_File_Format
More information and sample .ase files:
http://www.csit.fsu.edu/~burkardt/data/ase/ase.html
It's ASCII, easily parsed and you can export perfectly from MAYA, MAX, and many more programs.
Oh, and I can do 3D...