If you want to open an Outlook OST file but the file is orphaned or inaccessible, eSoftTools OST to PST Converter Software is the best solution. Normally, an OST file can only be opened in the Outlook profile where it was created, but with this software, you can easily convert any OST file to PST format and open it in Outlook. This tool securely extracts emails, contacts, calendars, attachments, and other mailbox items while preserving the original folder structure. Thanks to its user-friendly interface, even beginners can access OST files in Outlook without any technical difficulties.