Download eSoftTools OST to PST converter software to convert Outlook OST file into PST. Its UI is very responsive and cool. Everyone can easily use it. You can also convert Outlook OST file into PST and many different formats such as Yahoo, Gmail, Office 365, ICS, Zimbra, EMLX, HTML, vCard, EML, MSG, and MBOX. Bulk conversion of helps you to convert multiple Outlook OST files at the same time. If you want to use this tool so download the free demo version of this tool from the official website of eSoftTools.