To anyone who can help,
This has just been happening to us in the last month. We will have a normal size drawing and then when we Copy and Paste information from one drawing to another the drawing we are pasting into gets enormous. Like 30 megs. I will delete everything in the drawing, purge everything, and then audit. When I audit on the first two passes it only sees a couple objects like 10, then on the third pass it sees 500,000 plus objects. You can't see the objects or data but AutoCAD is saying there is something in the file. Someone please help shed some light on this problem and hopefully solve this problem.