You can use the eSoftTools MBOX to PST Converter tool to import MBOX data into Office 365. This GUI program can convert data from MBOX to PST, EMLX, NSF, GMAIL, YAHOO, Office 365, EML, MSG, and more formats. It migrates emails in a comparable folder hierarchy and generates a PST file that is error-free for Outlook 2019, 2016, 2013, and earlier versions. Users can also download the program on a variety of Windows operating systems and transfer all of their data from MBOX to Outlook PST.
Read More:- Convert MBOX to PST files
Read More:- Convert MBOX to PST files