Convert Outlook OST File to PST File - Version 3.01 Get OST file to PST file converter for Outlook OST file to PST file conversion. This tool supports for all editions of both Outlook as well as Exchange. OST file to PST file converter perform multiple conversion like convert Outlook OST file to PST file, EML and MSG formats. This software allow very simple and graphical interface for convert OST file to PST as yet best ability to repair, recover and convert unlimited OST database in few easy clicks. You also try out our free demo utility which offer to convert 5 OST file to PST file. For complete features & conversion you need to buy full version which is available at $99 only.