Best Outlook OST Converter Tool - Version 3.5 Convert Outlook OST database comes up mostly when the OST file becomes inaccessible due to unforeseen factors like hardware failure, power failure, network connection failure, bad hard disk sectors, human mistakes, etc. Other reasons like deletion of user's mailbox from Exchange Server, upgrading of Exchange Server, CRC errors, etc can also cause corruption in OST file and make it inaccessible. It is very easy to convert outlook OST into PST file with the best Outlook OST Converter Tool. The ‘Open OST' button of software will allow you to load damaged or corrupt OST file then, you can preview the recovered content of OST file on your computer screen. After that, you need to click on ‘Save as PST' button of software, which will allow you to extract the entire recovered database of OST file as healthy PST file format on your computer system. This Outlook OST converter tool converts Outlook OST to PST format including email, contacts, task, journal, to-list etc. This exclusive application easily runs into almost version of Exchange server as well as MS Outlook. You can