1.Open the Containers folder and ctrl+click each of these folders and Move to Trash. Note that some of these folders may not be present.
com.microsoft.errorreporting
com.microsoft.Excel
com.microsoft.netlib.shipassertprocess
com.microsoft.Office365ServiceV2
com.microsoft.Outlook
com.microsoft.Powerpoint
com.microsoft.RMS-XPCService
com.microsoft.Word
com.microsoft.onenote.mac
2.Click the back arrow to go back to the Library folder and open Group Containers. Ctrl+click each of these folders if present, and Move to Trash.
UBF8T346G9.ms
UBF8T346G9.Office
UBF8T346G9.OfficeOsfWebHost