If you have forgotten the password for the Outlook PST file and the file is not opening, I suggest a simple and effective tool: DataVare Outlook PST Password Recovery Expert. I used this tool, and my old PST password was recovered in just a few minutes.

• No technical skills required
• All versions of Outlook are supported
• The GUI is very simple
• The password is shown even in the demo version (with some limitations)

If you have forgotten your PST password, then definitely try this tool once.