The MailConverterTools PST Viewer is a reliable and free tool designed to open and view Outlook PST files without requiring Microsoft Outlook. It allows users to access emails, attachments, contacts, calendars, and other mailbox items in a user-friendly interface. The software supports both healthy and corrupted PST files, enabling users to view their data without the risk of modifying it. Compatible with all major Windows versions, the tool efficiently handles large PST files while maintaining data integrity. It offers a convenient solution for users who need to access PST files without Outlook, or for those dealing with damaged PST files, while ensuring smooth navigation through folders like Inbox, Sent Items, Drafts, and more.