To convert MBOX to Office 365 effortlessly and directly, the most recommended method is to use a professional tool like the DataVare MBOX to Office 365 Converter Expert. Users can convert bulk emails from MBOX to Microsoft 365 without any technical issues. It maintains database file integrity while importing MBOX emails into the O365 account. It is compatible with Windows operating systems including 11, 10, 8.1, 8, 7 and XP. It also works with Microsoft Outlook versions. You can test the application by downloading and using the free trial version, which includes the ability to export a few emails from MBOX to O365.