For the conversion of OST file to Outlook PST file use ATS OST to PST Converter application. It supportable to work with all the version of OS Windows such as 95, NT, 98, ME, XP, Vista, 7, 8, and 8.1,10 (32bit & 64bit). With the help of this application, you can convert single as well as multiple files at a one time.The user downloads its free demo version from its official site that allows you to convert 30 emails into PST, EML, EMLX, vCal, MBOX, HTML, vCard, HTML, MSG file formats. If you want to convert more than 30 emails so purchase the full version of this application in lowest price. That is the best facility to judge a tool.
There are multiple solutions available for converting OST to PST file format. You can Google this solution to the problems of converting your OST data into PST You can try the OST to PST converter windows, for your file migration.