OST to Outlook application is the best solution to transfer OST files into different Outlook versions so that user can easily convert OST to Outlook 2010, OST to Outlook 2013. By using the great tool named as OST to Outlook Tool, you can easily move from OST to Outlook with email, calendar, journal, task, notes, to do list and other attachments. It is compatible with all MS Exchange Server like 5.0, 5.5, 2003, 2007, 2010 and 2013 (64 bit).