A few days ago, one of my old Outlook PST files got locked, and I couldn’t remember the password. It contained very important office emails and client information. Tried a lot of software, but either the data was at risk or the interface was very bad.
Then I found OSTtoPSTAPP PST Password Removal Software. Believe me, it unlocked my file in just a few minutes, without any data loss!

Significant features I liked:
Easy and clean interface
Supports Outlook 2019, 2021
Very fast in removing passwords
Can be used even without any technical knowledge

If your PST file is also locked and you have forgotten the password, then definitely try this software once.