Problem importing .igs files into Max 2009

[zen-2k]

I am currently working on a live project for a client and have experienced problems in importing .igs (Exported from Pro-Engineer) into 3ds Max 2009. Both files are quite large at nearly 300 (mb) and keep causing the program to crash. I am used to working with .stl and .dwg and never seem to have problems with these particular formats but I have never used a .igs before and just wondered if anyone had any ideas or solutions to the problem.

 

This is my first post on this forum and would appreciate any help.

 

Thanks