If you can’t convert OST to PST file then you can use OST 2 PST converter software. Using OST 2 PST tool you can easily repair corrupt OST file with original message format as TXT, RTF and HTML. After that you can easily migrate outlook OST file to new PST file with all OST folders as inbox, outbox, sent items, deleted items, drafts, contacts, journals, notes, appointments and other in just a minute.