You may import Outlook PST files into Office 365 with eSoftTools Outlook PST Recovery Software. PST Recovery Software files can be used to create UNICODE files. A single PST file can be used to create several PST files in different formats, such as new PST, EML, EMLX, HTML, MSG, MBOX, Zimbra, and so on. The free trial version is available for all users. In the free trial version, you can recover 25 items from every folder and get technical help 24/7 free of cost every time.
For more info:- Import Outlook PST to Office 365