READ THIS!: Open with 7zip (free)

This is a 100% completed save file. If you replace it with yours, you will not be able to unlock any more achievements on steam. Please back up your save file if you have interest in unlocking things on your own!

The save game folder is located as follows: C:\Users\USERNAME\AppData\LocalLow\HumaNature Studios\ToeJam & Earl_ Back in the Groove!

Copy and replace your save prefs. This will not change your current save files afaik but that wouldn't be the end of the world if it did.

You can backup that whole folder to be safe.