With the help of Outlook ost to pst conversion tool, you can convert single as well as multiple files without disturbing the integrity of the database. converter online software to convert ost to pst online free, save ost file to pst file, Office 365 account, pst file, EML, EMLX, MSG, HTML, MHTML, MBOX, VCF, CSV, ICS, Live, Exchange Server, Zimbra, Gmail, Yahoo, and etc.  

export ost to pst outlook 2016