You can opt for CubexSoft Mac MSG Converter. It will help to convert MSG files to another formats like PDF, EML, CSV, Gmail, and many more. These saving options can easily be accessible on Mac. The software helps to convert MSG files without Outlook email app support. And run on almost all editions of Mac OS series. Get its free demo versions in order to resolve how do I open a .msg file on my Mac for free.
https://youtu.be/Emjux3GJVxY
