Open OST to PST - Version 2.3 Open OST to PST file is the streamline of halted Exchange Server users to reuse the corrupt or orphan OST file. For that, PCVITA OST converter software become more usable for you as it open OST as PST file and also have the FREE offered tool to backup Outlook data so that users can easily backup and manage their old Outlook data converted from down or dismounted Exchange Server. All the reasons of Exchange down are easily handled by our Open OST converter tool. User can open corrupt OST file in all MS Outlook versions:- Open OST file in Outlook 2010- Open OST file in Outlook 2007- Open OST file in Outlook 2003.Start opening OST files as PST file FREE of cost and also get aware with how to open OST file after damage, corrupt or inaccessible. FREE of cost, PCVITA tool can open OST as PST with 5 items only. For more, users require Full Version of Open OST software, comes with an additional FREE Outlook Email Archive Tool.