As we know, Mbox is a popular file format of MS Outlook for Mac mail and other(apple mail, Thunderbird, etc.) email clients. It is not approved by MS Outlook for Windows. If you are looking to access MS Outlook for Windows in your Mac OS, then you require a software Mac Thunderbird to PST Converter. this application migrates your MBOX file into Outlook PST format without any trouble. you can install this tool easily in your Mac OS. You can download the free version to know how its work. For more information: https://www.toolscrunch.com/mac-thunderbird-to-pst-converter.html