You can easily use SysInspire 7z Password Recovery software to recover lost 7z file passwords. It is a completely safe tool for all users and all O/S windows. In this software, users can easily copy the password after recovering it. Brute Force Attack, Mask Attack, and Dictionary Attack are the 3 different methods of this tool that will help to quickly recover lost password of 7z files. And the free demo version provided by this tool, use it for free and recover the first three characters of the locked 7z file. For more details, you can click on the link given below.