Exporting .max files to .igs files is possible with 3ds Max (previously 3D Studio Max), unfortunately not that simple. The most convenient way how to achieve max to igs conversion is through the File ► Export ► IGES menu option and only the geometry will be saved. A log file is also generated together with the .igs file that contains detailed information about the processing of the model.
Open MAX file Open IGS fileA 3D CAD translation software