Outlook OST Viewer tool to easily read or open unreadable offline storage Outlook OST file and view inaccessible emails with entire email properties. With the use of Outlook OST Email Viewer, use can easily restore deleted emails from OST file and save them into PST, EML or MSG file format. It is open source email viewer software which gives stability for Outlook email user to easily view unreadable emails on offline Exchange Server. This software is designed with high algorithms therefore deeply scan orphaned or non-synchronized Exchange OST file and view entire emails from them as well as save into PST file format. It also restores deleted emails from Exchange OST file. It runs with entire Windows platforms including Win XP, Win Vista, Win 7 and Win 8 and supports MS Outlook version 97 to 2013 too. Try freeware OST Viewer solution and view or open emails from unreadable offline Outlook OST file.