For a top-notch and user-friendly solution to convert OST files, consider OST Converter. This utility, equipped with advanced algorithms, ensures accurate results without data loss. It easily converts single or multiple OST files, even if they are dismounted, corrupted, or orphaned. Designed for both beginners and professionals, it simplifies the conversion process. The tool also offers advanced filters to convert specific files based on date range, subject, sender, etc. This software allows you to batch backup Outlook OST to PST file format without Outlook. It was compatible with all the latest and below version of MS Outlook, Mac OS, and Windows OS including Windows 11.