For unlocking password-protected 7z files with or without a password, users can follow all the steps shown below:-

Download and Install the eSoftTools 7z Unlocker software on your computer.
Press the Browse File button to select and add encrypted 7z file in the software.
After file selection choose a recovery method from the options:-
Brute Force Attack
Dictionary Attack
Mask Attack
Next apply other setting with password recovery strategies (like- password length, character sets, dictionary file selection, etc.)
After all selections click the Recover button to start 7z file recovery process.

Start the recovery process and get the original password of 7z file. Next, directly open 7z file by clicking the “Open File” button.

Alternatively, users can use Copy to Clipboard option to copy the recovered password and put it in locked 7z files to unlock them manually.

Steps to Unlock Password Protected 7z files with Password-
Open Window Explorer and move to the location where 7z file is saved.
Double-click on it and open the file
Enter the password and click on Ok to unlock 7z file easily.
Excellent features 7z Password Recovery tool
The software works well with all types of 7z file versions for making password recovery.
Recover lost 7z file passwords with simple and easy steps.
Saves users valuable time by making password recovery with a fast speed.
Has an easy to use graphical interface for both technical and non-technical users.

This may help you,
Rachel Gomez