Way 1: Open Locked WinZip File with WinRAR Hope these two ways could also help you to open your WinZip file after WinZip password forgot. Way 2: Open locked WinZip file with NSIS.Way 1: Open locked WinZip file with WinRAR.Just like the article shows in following, users could open locked WinZip file with two ways, WinRAR and NSIS. But if we can think it about, we would find as long as we have WinZip password, locked WinZip/7ZIP/ZIP/RAR/WinRAR file could be opened in WinRAR etc compression software. It seems so difficult and cannot be solved if we plan to directly open WinZip file without any software or help from others. Locked WinZip file forgot password, how to open locked WinZip file?