If OST file is corrupted, inaccessible and your crucial information is the stake of loss then use a OST to PST Converter Software you export whole OST file data into ing PST, EML, MSG and HTML formats.
Software performs accurate recovery of all emails, attachments, contacts, and other mailbox items from corrupt OST files in a very short time. After conversion all Outlook attributes (Emails, Contacts, etc.) would retain their original folder structure and within few minutes you can start accessing your emails from the new PST file.
It works on OST file versions-5.0, 5.5, 2000, 2003, 2007, 2010, 2013, 2016.
It works with all Windows OS version like : Xp, Vista, 7, 8.1 and 10. After using this application you feel it is really very best solution.
Download Free Demo version from: http://www.pcrecoveryutility.com/ost-to-pst-converter.html