Opening OST files in Outlook: Convert OST files into a wide range of formats—including PST, EML, MSG, Office 365, IMAP accounts, MBOX, Gmail, Yahoo, EMLX, HTML, and vCard—using the
eSoftTools OST to PST Converter software. Many users have already utilized this tool and achieved excellent results. The software also allows you to preview any items within an OST mailbox, and a free demo version is available.
Read More:- Open an OST file to Outlook