Office 2007 have 498MB size it’s not over 1GB and will don’t eat your internet quota, because office 2007 can fully work without internet connection. Office 2007 can installed in Windows 7, Windows 8, and also Windows 10. We recommend that your computers have 4GB minimum free space, using minimum processor Core 2 Duo/Dual Core, 2GB RAM and using Windows 7. You can download office 2007 for full via following links.
