Use MailsDaddy Free OST Viewer Tool to view all items such as emails, contacts, calendars, tasks, notes, etc. It also opens large OST files and reads corrupted and healthy OST files. The software supports MS outlook 2019, 2016, 2013, 2010, 2007, etc. It can read contacts and all property names, addresses, dates, etc. https://www.mailsdaddy.com/free-ost-viewer/