You can use Atom TechSoft for OST to PST Converter software to convert OST to PST file. To allow access of Offline OST file as a PST, it is required to Convert OST to PST in Outlook 2016 Online. Tool is very fast repairing process to recover any types of corrupt Outlook OST file along with it easily Restore/conversion/convert whole emails Meta properties such as: time, to, cc, bcc, images, date, subject and all attachment etc. And by helping this tool you can Saved the recovered OST emails into PST, EML, MSG, HTML formats. It’s providing trial version that offers convert complete OST File data but save only 25 mails into every format. It repair & convert all OST File emails, contacts, calendars, task, note and appointments. It works on all MS Outlook versions included- 97, 2000, 2002, 2003, and 2007 2010, 2013 to 2016. Read More-: https://gust.com/accelerators/atom-techsoft-for-free-outlook-ost-recovery-using-best-ost-to-pst-recovery-software