Outlook - Import Outlook OST or Archive on Mac

Question

How do I import my Outlook data files on a mac? 

Overview

1. With Microsoft Outlook open choose File
2. Choose Export from the menu bar
3. Navigate to the location of your Outlook for Mac Archive.olm file then click Import
4. Once your mail items have been imported, they will be available at the bottom of the left-hand column in Microsoft Outlook under the On My Computer section.

If you have a significant amount of email or calendar events, this import can take upwards of ten minutes. You will be unable to use Outlook during the import. Please do not interrupt the process.