How to set up vs code extension development files in less than 5 minutes?

It is very simple to create them.
Following these step-by-step instructions

1. Install Node Js
2. Create a new file and open it in the terminal.
3. Type this command:

npm install -g yo generator-code

1. Type this command after installing it yo code
2. You will need to fill out the form about the extension

When you are done following these steps you are ready start coding your extension.