1. Advance OST2PST Recovery Tool Finally, decide to grab Advance OST2PST Recovery tool which is available for download to recover data from OST file. OST2PST converter freeware download for free demo that works like full version but cannot have the permission to save OST2PST file format. OST to PST Recovery tool comes in OST2PST EX... Date: 20.3.2013, downloaded: 0 (total: 4), vote: