Yes, I understand all that is said, and have done these things, again, I may be missing something, but I took it as far as turning on all the layers in model space, erasing everything, deleting all but 2 of my 17 sheet files, purging so that there were only like 12 layers left, and then saving just for giggles, and the file was reduced only 2 MB, resulting in a 12mb file........Highly unusual.....Im very knowledgeable in CAD and have never come across something like this before. although, I have never used the "Tab" method so much before either.....