Forum Discussion
JonHunt
Jul 15, 2026Copper Contributor
Activation failed
I have been running MS 365 on my Mac laptop for years with no issue. Suddenly I cannot save an Excel file. I saw the activation button, but activation failed with the code OxO....unknown cause. I can...
LongliJiang
Aug 01, 2026Copper Contributor
I have same issue. I am running macOS 12.1, but I search and find this OS is okay for Excel, anyway I have not fixed this problem.