Are there anyone who has the specifications of the .MAX file format, used by 3D Studio MAX.

Have you checked out Wotsit?

There is no Max file format, it''s just a bunch of pointers to plugins in Max really. You''ll have to write your own format and export it from Max. The SDK is full of examples, and there''s a book "Mastering Max Script and the Max SDK" that has a few chapters on the subject. It is possible to get ALMOST everything out of one of the nodes and load it from a Max file into your game, provided the object''s modifier stack is collapsed to an editable mesh, but it''s much easier to just write a new format and export what you need.