A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Oh ok, so it is working properly now?
If so, you can leave it be.
Otherwise keep this link handy. If next time it won't be fixed after a reboot, uninstall and downgrade to the slightly older version released in June. https://res.public.onecdn.static.microsoft/mro1cdnstorage/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/Microsoft_365_and_Office_16.110.26062818_BusinessPro_Installer.pkg?apid=ets