If your OST data got corrupted due due some reasons then third party is would be best option for you because it can easily recover all ost data in every scenarios. There are so many third party software available on internet.
But Why using any other third party software just use this Exchange OST Recovery software to securely removes errors from OST File and convert OST File into PST, EML, MSG, HTML, EMLX, MBOX, vCard and MBOX format along with emails, contacts, calendars, task, notes, inbox items, outbox items and appointments.
When the scan is done, It will show the live preview of conversion items of OST File and let disclose any information from OST File. OST to PST Converter Software will extract OST file emails attachments and properties- to, bcc, cc, time, subjects and from and with this tool you can easily extract your ost files to pst and you can also convert it into Office 365.
All users both technical or non technical can easily use this software without any technical skill and provide enhanced easy to use user friendly interface to make this software fast and simple.
Visit here:- http://www.ostrecoverytool.pcrecoverytools.com/