If you want the best way to convert OST to PST files, try the TrustVare OST to PST Converter Tool to migrate all large and bulk emails at once in a few seconds from OST to PST files without technical issues. This software transfers all emails, attachments, contacts, and calendars from OST to PST format. It supports all MS Outlook and Windows OS. This method allows for a preview of OST data before the conversion, and users can recover their corrupted OST data. Download and try the free demo version for experience.