Best Methods to Unlock a Password-Protected PST File?

I have an old Outlook PST file that is password-protected, and unfortunately, I no longer remember the correct password. This PST file contains important emails and contacts that I urgently need to access. When I try to open it in Outlook, it keeps asking for the password and does not go further. Can anyone suggest the best and safest methods to unlock or remove the PST password without losing any data? I am looking for reliable options — either manual methods or any trustworthy tools you have used.