I'm already at 390mb and I need to know how to reduce my file size, any suggestions?
Save it as another file, this sometimes works. 9 More Answers
My ArchiCAD project file is getting very large, are there some quick ways to reduce it?
You can also use attribute manager to delete unused fills and layers. Options > Element Attributes > Attribute Manager, but I would only do this as a last resort. 2 More Answers