You must be aware of the fact that Outlook for Mac and Outlook for Windows store emails in different file formats. If you are using MS Outlook on Mac then all the emails are stored in an OLM file whereas Outlook for mac stores emails in a PST file. Many Mac users don’t know how to open Windows Outlook PST files on a Mac machine. If you want to read a PST file on Mac Outlook then it is not possible to do so. Therefore, here you can see the technique to view all the emails of the PST file on a Mac machine. You will just have to implement simple steps and open the PST file on Mac Outlook.

read more:- https://www.macsonik.com/blog/open-outlook-pst-file-on-mac/