How to Open Old Outlook PST Backup Without Password Issues?

I recently found an old backup Outlook PST file from one of my previous systems. The problem is that when I try to open or import it in Microsoft Outlook, it asks for a password that I no longer remember. I am not sure if the PST was password-protected earlier or if Outlook is just detecting it that way after moving it to a new system. This PST file contains some important emails and contacts that I really need to access. Has anyone faced a similar issue while opening an old Outlook PST backup? Is there any reliable method or tool to open or recover data from a PST file without the password?

If your Outlook PST file is password-protected & you don't remember the password, you can try the DataVare Outlook Password Recovery Expert Tool. I recently used this tool & found it to be quite easy and fast.

Some highlights of this tool
Quickly recovers Outlook PST file passwords
Supports both old & new Outlook versions
Simple & user-friendly interface
Password recovery without data loss

Just add the PST file to the tool & you'll get the password in no time. If anyone is having trouble recovering their Outlook PST password, this tool can be a good option.