I recommend the SysInspire OST to PST Converter tool. Users may simply convert Outlook OST files to PST and many more formats, including Yahoo, Gmail, Office 365, HTML, ICS, MSG, EML, EMLX, vCard, Zimbra, and MBOX, using this software. It can also convert numerous Outlook OST files at once. It also offers a 30-day money-back guarantee and excellent technical assistance. Download the free demo version of this utility from SysInspire's official website.
Read More:- Convert OST File to PST
Firstly download or install the PassFixer OST to PST Converter software to repair corrupted OST files and also convert OST files into PST and
many supportable formats like HTML, MBOX, EML, EMLX, Yahoo, Gmail, Office365, Zimbra, vCard, CSV, MSG, etc. That will also give you powerful client support also give you many useful features which can make the software easier to operate. This software will give you a trial edition of this tool for users satisfaction.
Read More:- Convert OST files into PST