If you have forgotten the password to an activity you created, or if you are an instructor dealing with a locked file, there are a few documented workarounds:
When a file is password-protected, clicking Extensions > Activity Wizard (or pressing Ctrl+W ) will trigger a prompt for credentials. Common "Default" Passwords cisco packet tracer activity wizard password
Some open-source tools on GitHub claim to patch the Packet Tracer executable to bypass the password check. These tools typically work by replacing the stored password hash with a known one (like "Ferib"). If you have forgotten the password to an
While there is for the Activity Wizard, many labs provided through official channels or instructors use common placeholder terms. If you are stuck, it is worth trying these common Cisco-related credentials: cisco class cisco123 admin cisco packet tracer activity wizard password