This OST to PST Converter Tool is safe for converting OST mailboxes into PST, EML, MSG, MBOX, HTML, PDF, Office 365 and Live Exchange Server formats. It migrate entire mailbox with all items emails, attachment, deleted items, contacts, and appointments, calendras, etc. Try its free trial version by which you can save first 20 items per folder. This tool supportable with all versions MS Outlook file.
To know more features of tool, visit: https://www.datarepairtools.com/ost-to-pst-converter.html