For getting know how to recover OST File in Outlook, you can download OST File Recovery Utility which works to repair corrupted OST File and recover Outlook OST File into several formats such as- EML,MSG, HTML, MHTML, RTF, TXT, DOC, PDF, MBOX and Outlook Profile. This software provides several features that you can use during conversion, features like- PST Split, Messages filtering, multiple naming convention and saving 20 OST emails free.