If you are looking to open PST file without Outlook, you can use specialized software like MSOutlookHelp PST File Viewer. These tools allow you to view all data stored in a PST file, including emails, contacts, calendars, and attachments, without requiring Outlook. A popular option is the MS Outlook PST Viewer, which provides a user-friendly interface for accessing PST files on Windows. You can easily browse, read, and preview PST files, even in bulk. Many PST viewers also allow you to convert the PST data into other formats such as PDF, EML, MBOX, or CSV for easier sharing and access. These tools are compatible with PST files from various versions of Outlook and work independently of Outlook, making them a great option for users who don’t have Outlook installed or need to recover data from damaged files. Some PST viewers offer free trials with limited features, while the full version provides additional export and management options.