Worst idea ever....
Also, you don't know how to use google spreadsheet? That's on par with not knowing what FTP is.
How is it a bad idea? And google spreadsheet seems easy I just don't want to mess it up.
Almost no one played the 3x, so even less would do the 4x.
What's there to mess up with the spreadsheet? You create it, set it so only you can edit, and share the link.