The most efficient way to export OST to PST format is by using a professional solution, as manual conversion is not feasible. Goldytools OST to PST Converter is a user-friendly software that enables quick and precise OST to PST conversion. It ensures fast and accurate recovery of accidentally deleted OST files. The software supports adding multiple OST files without any size limitations, providing flexibility for large datasets. Additionally, it allows you to save OST file items in various formats, including HTML, O365, MSG, and more. You can also export contacts separately in CSV format and calendars in iCal format for added convenience. https://www.goldytools.com/ost-to-pst-converter.html