With the eSoftTools OST to PST converter software, you can easily convert or recover missing and corrupted Outlook OST files in Windows 10 without losing any important data. It can convert Outlook all mailbox items  such as contacts, calendar, sent box, outbox, address book, and attachments to  PST, Office365, Gmail, Yahoo mail, Zimbra, MBOX, MSG, ICS, vCard, EMLX and a lot of formats. It has a demo version which can convert 25 items from every folder for testing software performance.

Read more:- Repair Outlook OST files in Windows 10