Reading PST files without installing Microsoft Outlook is possible by using a standalone PST file viewer. Since PST files are designed for Outlook, they cannot be opened directly like normal documents. A tool such as SysInfo PST Viewer helps in this situation by allowing users to load a PST file and read its contents independently. Once the file is added, emails, contacts, calendars, and attachments appear in an organized folder structure. If needed, the same tool can also be used to convert PST to MBOX, making the data accessible in other email clients.
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