If you're looking for a reliable and error-free way to convert OST files to PST files. Then try the DataVare OST to PST Converter software. It is an easily to convert from OST to PST without losing file quality. It exports the entire OST data file, such as notes, messages, emails, contacts, and calendars. This program reads OST mails, notes, messages, contacts, calendars, and other databases to convert them to PST. By exporting only specified OST files, the converter consistently produces desirable conversion results. Technical and non-technical users can easily convert an OST file into a PST file without any technical knowledge. They are allowed to choose any folder or sub-folder to save the converted data. You can contact the tech support team at any time if you have any questions about this conversion application. You may try the free demo version for a few items to convert the OST file into the PST file format. The resulting file is compatible with all Outlook versions, including 2003, 2007, 2010, 2013, 2016, and 2021. The utility is compatible with all the Windows-based operating system versions, including Windows 10, 7, 8, XP, and Vista.