For a standard ZIP archive, compressing a 3.5 GB installation to a 10MB file would require an impossible compression ratio of 0.28%. Even highly specialized software is physically incapable of such extreme reduction.
When downloading any software, here are some general tips to consider: Microsoft Office 2010 Highly Compressed 10mb
Microsoft Office 2010 is a massive suite of productivity applications. A standard installation of this software requires roughly . For a standard ZIP archive, compressing a 3