You can unlock your 7z file without a password. All you need is this eSoftTools 7z password recovery software. It provides Brute force attacks, Mask attacks, and Dictionary attacks, so the tricks of this tool work in different ways. You can use these techniques 24/7, and recover the password of your 7z file using any of them. For more information, you can click on the link below.

INFO;-Unlock password protected 7z file