If you are getting issues while converting Outlook OST files to PST format manually then you can take help of promising OST to PST Converter software. Users can convert OST files including emails, contacts. notes, attachments, journals, etc. The software retain meta properties of OST emails in PST format. Users can live preview of complete mailbox items during conversion process. The software have self explanatory interface so that users can efficintly convert OST to PST files. It is fully supportable to all editions of MS Outlook. Users can download the free trial version to see the features and work-functions of the software.
Read more- https://www.zooksoftware.com/ost-to-pst/