In the event that you can attempt to unlock the 7z file online free. You can utilize eSoftTools 7z Password Recovery Software. It can break all types of combinations like alphabetic, numerical, alphanumerical, and special characters. It can recover forgotten passwords and save them to the clipboard. This tool stores the recovery password on the clipboard and also supports ANSI and Unicode format. Users can download a free demo file to show the initial 3 letters of password.