Recoveryfix OST Viewer is a free tool that allows you to open and read OST files without needing Microsoft Outlook. It's helpful for viewing the contents of orphaned or inaccessible OST files. The
OST viewer displays emails, contacts, calendars, tasks, and notes. It provides a user-friendly interface for navigating the OST file's data. While it doesn't convert OST to PST, it's a valuable tool for previewing and verifying the contents of an OST file before attempting conversion or recovery.