With today’s use of e-mail you almost can’t afford to lose a single e-mail so let’s learn a simple and effective way to back up and restore Microsoft Outlook OST file. We’ve discussed two methods on how to convert OST files to PST format by using the manual technique and a third-party tool (Magus OST to PST converter). Also explained which method is best to be used in which scenario and why it is so crucial to backup outlook OST data.