I have been using Outlook for quite some time, and my PST file has become quite large. I suspect that a lot of junk or unnecessary data is taking up space, but I do not want to risk losing any important emails while cleaning it. Can anyone suggest a safe and effective way to remove junk or unwanted items from a PST file without deleting essential emails or corrupting the file? Also, if there are any reliable tools or manual methods for this, please share the steps.