If you are looking for a tool to view without any technical knowledge, you can use the MacSonik PST Viewer. This utility is top-notch, allowing you to easily convert a PST file into multiple saving formats without technical support. By using this tool, you can safely convert PST files to PDF, MBOX, EML, HTML, MSG, CSV, and many other formats. You can also split large PST files into smaller ones, reducing size while keeping emails, contacts, and calendars intact.