I just installed Microsoft Office 365 a few weeks ago. Every time I open Excel, I get three "messages" or "files" instead of the normal Excel menu. Messages include backup.bat, contact info, and an old file from years ago. I don't want to have to close these "messages" or "files" every time I open Excel. Is there a way to permanently close them? Thanks.
P.S. Incidentally, I have used the old Microsoft Offices for 20-25 years and never had this problem.