You can unlock your 7z file without a password using eSoftTools 7z Password Recovery software. This software is available 24/7 and it is free to download. It provides you with 3 techniques that are very useful for users Dictionary Attack, Mask Attack, and Brute Force Attack The best part is that it gives you a chance to try this software and use the free demo version. Click on the link below to download it.

INFO;-Unlock password protected 7z file windows 10