Import maya files into 3d max

hello everybody ..
i make some models in maya we my friend he work just 3d max and he want to animate them in max .. but we couldn't open the maya files into it ..
can you help me how to convert the maya files to open it into max? ... Thanks

Nowadays, there is an FBX format and it's good a lot for exporting to 3dsmax. You can download a plug-in for it here: http://images.autodesk.com/adsk/files/fbx20093_3dsmax2009_win.exe (for 3DSMAX 2009), http://images.autodesk.com/adsk/files/fbx20093_maya2009_win.exe (for Maya 2009).

It's MUCH better than using OBJ or something else.

thank you very much my friend ... you really helped me in that ... god bless you ...