Any user can transfer all Outlook OST files into Outlook PST without losing any data. It allows users to restore damaged OST files including emails, notes, tasks, journals, contacts, etc., and migrate into multiple types like EML, EMLX, MSG, Yahoo, Gmail, Zimbra, MBOX, HTML, and HTML. It can also easily accessible in all MS Outlook versions. I recommend that you first try the free preview edition of this tool to get a better understanding of its functionality and functions.
Get More Info:- Free Unlimited OST to PST Converter