If you want to convert an OST to PST in Outlook 365 with Enstella OST to PST Recovery Software. You can import OST to Gmail, Office365, YahooMail, and Outlookcom. This software has been supported on this MS Outlook edition 2021, 2019, 2016, 2013, 2010, 2007, 2003, and all previous editions, and this MS Outlook installation is required for using the software. Try this free trial version.
Read More - [Convert an OST to PST in Outlook 365](https://www.enstella.com/blog/backup-and-restore-outlook-ost-file/)