I used eSoftTools OST to PST Converter software because it’s a user-friendly interface and very easy to use. And many types of helpful features are very impressed me. Its converts OST file data to PST, EMLx, MSG, ICS, MBOX, Office 365, Gmail, HTML, Zimbra, EML, vCard, Zimbra, and Yahoo. The live preview feature is also available in this tool. Get a free demo version of this tool from the official website.