Using older versions of Outlook for Mac in business environments
Hello ltrsego,
Generally, Outlook for Mac stores its identity in ~/Library/Group Containers/UBF8T346G9.Office/Outlook/Outlook 15 Profiles/Main Profile.
Therefore, if you only want to get your old Outlook files, we recommend that you may close you Outlook for Mac firstly and delete the Outlook folder under the new created UBF8T346G9.Office file from **/Users/<your home directory name>/Library/Group Containers/,**then copy the Outlook folder from the old UBF8T346G9.Office file back. After that, re-start Outlook to check how it goes.
If you need further assistance, to help you better and further, you’re recommended to contact our Outlook for Mac experts via the dedicated channel by going to Help -> Contact Support on Outlook menu bar. They’re our expert channel with more resources and knowledge for such kind of issues, believe they will provide further professional suggestions to you.
Best regards,
Jennifer