If you want to export Outlook OST file to PST format, the simplest and secure solution is to use eSoftTools OST to PST Converter Software. This tool is specially designed for users whose OST files have become inaccessible, orphaned or corrupted and are difficult to open or restore in Outlook. With the help of advanced scanning engine, the software accurately recovers OST emails, contacts, calendars, tasks, journals, notes and exports them to PST format. Also, folder hierarchy, metadata, read/unread status and attachments are completely preserved. Batch conversion option is also available in it through which multiple OST files can be converted in a single process. After conversion, simply open the PST file with Outlook's Import/Export wizard. Its beginner-friendly interface makes this tool perfect for every user. If you need fast, safe, and error-free OST to PST export, eSoftTools OST to PST Converter is your best choice.