With the assistance of ATS NSF to PST converter, you can convert single as well as multiple file in many file formats like PST, EML, vCal, vCard, MBOX, etc. through the help of this converter you can also able to see the preview of recovered mailbox, then convert the data into PST. It supports cloud-based application Office365& Live exchange server. You can download it from its official website. If you are not happy with it, you can return it within 30 days of purchase.