OST to office 365 migration tool is the good program you can see a live preview of the internal items of OST before starting the conversion process from ost to office 365 account. With OST to office 365 migration tool, you can export the database from encrypted and password protected file along with all email properties such as (To, Cc, From, Date, Time and Bcc). By using ost to office 365 tool to import OST file to Office 365 account, pst file, EML, EMLX, MSG, HTML, MHTML, MBOX, VCF, CSV, ICS, Live, Exchange Server, Zimbra, Gmail, Yahoo, and etc.