I am facing an issue with my Outlook because the PST file size has become very large, and it is affecting the performance of Outlook. I am worried that if it keeps growing, it might get corrupted or become inaccessible. Can anyone please guide me on how to compress or reduce the size of a large PST file without losing any important emails or attachments? I am looking for safe methods—whether manual options in Outlook or any reliable tools—that can help in compressing PST files without data loss.