Convert OST File to PST - Version 5.5 How to convert OST File? The main factor for OST data file conversion is Exchange server corruptions as well to create back-up of Exchange OST data file. When OST data file is damaged then users get incapable to access OST information's. This OST data file helps you to save all information like email, calendar, to-do list, task journal etc into local hard drive. This OST converter tool easily repair & convert OST file into several data formats like MSG, EML, and PST. Software firstly scan whole damage Exchange OST data file with 100% data accuracy and the convert into Outlook PST format. Now effortlessly convert OST data file into Outlook 2003, 2007 and Outlook 2010. Install trial edition to check as well view whole damaged OST items. If you fully pleased with FREE OST converter software performance then you can easily continue to buy full version by making an investment of $99 only.