Exporting models from 3DSMAX 9 to Gmod

I have been advised to post this subject here rather than general discussion

I apolagise if this subject has already been disscused.

I want to be able to export some Starship models mainly from this site: (http://www.trekmeshes.ch/) to Gmod, from 3DSMAX 9 but i have no idea where to begin. I would apprechiate any help or instructions on how to go about this.

Cheers and thanks for your time.