1. install Node Js in your machine.
2. extract the files from .zip .
3. keep all these files inside a folder.
4. generate your own token(from typeform dashboard) and replace "<give your own token>" it with that token.
5. inside that folder open a terminal and run "npm install" (makesure Node Js in installed inside your machine).
6. keep the excel fie inside this folder and change the "filename"(line no. 31) variable with that name. 
7. after all set up you can run createTypeform.js file using this command "node createTypeform.js".