While getting any type of error or corruption problem in the OST file of MS Outlook, makes data loss issue. So to get back your important data user can utilize this
eSoftTools OST to PST Converter Software.
Through this OST to PST conversion program, users can simply transfer data like- E-mails, contacts, chats, tasks, notes, appointments, and other items from the OST file to PST by just applying some simple steps.
For a quick demo of its working process, you can try its free trial version which allows the user to move selective 25 items from each mailbox of OST file to PST and various other file formats.
You can use it to convert OST to PST, EML, EMLX, MSG, vCard, CSV, MBOX, HTML, and also it offers to transfer OST file database to Office 365 account.
For More Info, Visit Here:- Convert OST to PST