Hi again,
thanks for the last replies - I am making progress 
for today I would like to know if it is possible to use npm dependencies in the Javascript Code. I would like to unzip a file using adm-zip npm package.
kind regards, andi
This topic might help. It asks the opposite - to ZIP files and @kerrishotts suggests to use NPM module. There’s an example in comments. I’m not familiar with NPM and how it works, but I guess this should help you.