How to unlock a 7z file without a password?

The eSoftTools 7z password recovery software is the most popular software on internet. I tried this tool to unlock the 7z file without a password. there are 3 advanced techniques to open a 7z file such as Brute Force Attack, Dictionary Attack, and Mask Attack. the user can also take a demo file to know the first 3 letters of the forgotten password of the 7z file.this software is GUI-based on Windows. Support all editions like window XP,7,8,10, and onward.