DataVare OST to PST Converter is a powerful tool for converting OST files to PST format. It is designed to help users convert any large OST files to PST format while maintaining all emails, contacts, calendars, and other Outlook data. The standalone software works completely independently, so no MS Outlook installation is needed. Its simple and clean graphical user interface makes the software easy to use for both tech and non-tech users. Moreover, the converter tool works efficiently in all versions of Mac and Windows OS.