Using older versions of Outlook for Mac in business environments
Hello JeraldJ,
Welcome to Microsoft Community.
Regarding your issue, we would like confirm does this issue occurs in new Outlook for Mac or new classic outlook for mac or classic Outlook for Mac? You may try to switch Outlook version by turn on/off new outlook option from the top right corner side of the outlook app and check if you found any difference. From our end, we have switched to New/Classic outlook version and able to use import/export option.
If this option is not visible in old/classic outlook version, request you to please kindly provide us complete screenshot of your outlook version ) and screenshot of your issue, so we can check and assist you further.
Kind Regards,
Tommy