Go for one and only best OST converter that is InQuit OST converter, this recovers your metadata such as to, cc, bcc, subject, date and time into PST file if you use InQuit OST to PST converter. It saves the converted file in Office 365, MBOX, MSG, EML, EMLX, vCal, vCard and many more other formats. Supports MS Outlook 2019, 2016, 2013, 2010, 2007, 2003, 2002, 2000.Size of OST file doesn’t matter. Using this application you can split your large OST file into small PST file. This program is built with a highly advanced algorithm.