If you want to transfer OST to PST file with all OST folders as inbox, outbox, drafts, sent items, deleted items, contacts, appointments etc then you must try InFixi OST to PST converter utility. In which you can extremely migrate OST to PST outlook file without changing previous outlook OST file data. Using this tool you can access your email metadata like as to, cc, bcc, subject, date and time in proper way.