VOLCANO PIXEL ART

A coded message was written on a piece of paper inside Otto and Axel's book. Along with the message was also an encoded image. If Axel and his uncle manage to break the code they will have a valuable help on their journey. Let's help them!

Crack the code and reveal the secret image!!!

 

https://docs.google.com/spreadsheets/d/1ni7KBO-wtH1RrghyWL4iLU71DRmKqrdFs9oIxTh2zXo/edit?usp=sharing