I think you should go with OST to PST converter software because this conversion solution app always provides you with accurate results to transfer emails, mails with each data from damaged ost file in new outlook pst file. The ost to pst converter open source tool has best feature facility to convert file/folder from corrupt ost to pst file by helping batch option. This software smoothly export ost to PST Outlook with 20+ file formats- Gmail account, Office 365 account, pst file, EML, EMLX, MSG, HTML, MHTML, MBOX, VCF, CSV, ICS, Live, Exchange Server, Zimbra, Gmail, Yahoo, and etc.  

Convert ost to pst