Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi all,
Just to update that this problem is resolved.
While shutting down, there was an automatic updating and I think some of the required packages were re-installed again. After that, I could open Excel, Word and Powerpoint again. I didn't know that Windows XP could do self-diagnostics and automatic troubleshooting...
Anyway, thanks everyone for your help!
Regards,
Terence