Many users use automated software to easily convert OST to PST. The DataVare OST To PST Converter can help you easily convert OST to PST files. You would be best suited for this tool if you use MS Outlook. It saves time as you can quickly export many OST files to PST. It is the best OST to PST Converter for Mac and Windows OS. Also, maintaining data integrity, this program allows users to examine their files in a preview screen. This application is both for Mac and Windows users. Users can also try its free version for free.