Hi,
I regularly save part files as SAT files for RF analysis with our engineer. Usually the smaller the file size (less features, surfaces etc). the better. I recently saved a file with lots of internal features as a SAT file and the size was 4mb. I then removed all features not required such as bosses, embossed text and so on- saved the file as SAT again and the filesize was 9mb. I dont see how this possible ... what is it that actually defines the filesize in parts and how is this related to other formats .. SAT, IGES etc?
SolidworksParts And Features