I used the Export in the Outlook into an external USB disk but it failed. The .olm files could not be Exported. Several times it went into Rebuild of Microsoft Database Utility which also did not fix the problems. It was so easy to Export the Outlook database in PC but very difficult to Import into Outlook for Mac and now impossible to Export from Outlook for Mac. I do regret getting the Outlook for Mac.

I think Microsoft Outlook for Mac should not be sold to the public until it is fixed completely.