Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
To uninstall, follow https://support.microsoft.com/en-au/office/uninstall-office-for-mac-eefa1199-5b58-43af-8a3d-b73dc1a8cae3
To install, follow https://support.microsoft.com/en-au/office/download-install-or-reinstall-microsoft-365-or-office-2024-on-a-pc-or-mac-4414eaaf-0478-48be-9c42-23adc4716658
If the above response helps answer your question, remember to "Accept Answer" so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.
hth
Marcin