If you want to open a 7zip file that has a password. The most useful and secure tool for you is the eSoftTools 7z Password Recovery Software. This is the most user-friendly and secure method. This tool offers three different types of password recovery attack techniques. It can instantly recover any kind of complex password. With the quickest method, it also provides immediate results. Users can quickly and simply recover any form of complex password with the use of this software. Every Windows edition can use it without issue and safely. Moreover, you can use a trial pack to get the first three characters of a locked 7Z file without buying it.

More Info - Open a password-protected 7zip file