Why can't I edit Exel 2002 spreadsheets on my Windows 7 64 Bit OS?
I am having trouble editing any Excel document on my Windows 7 64 Bit machine. I can click on any cell but I cannot enter any data. Once I press any key, Excel will lock up and a message pops up that it is shutting down. I have all the latest patches, security updates, and service packs installed. I even removed Office XP completely and reinstalled but nothing is working. Any ideas what is causing this problem?