According to the other users, Regain OST to PST Converter is a top OST to PST converter. This utility provides a simple user interface and strong capabilities; thus, it can serve as an optimum solution for OST conversion to PST format in the shortest possible time. It is compliant with batch conversion, the conversion of multiple OST files at the same time without data integrity loss or folder structure corruption. Furthermore, the application enables previewing a file before the conversion and provides exportation features to Office 365, Live Exchange, Gmail, Yahoo, and so on. It further supports a number of file types such as EML, MSG, PDF, and MBOX. Having an affinity for all Outlook OST files and all Windows versions, it offers a free trial period to allow the user to test the product’s performance before purchasing.