Test of the npm packages xlsx and simply-trello
git clone https://github.com/PotOfCoffee2Go/excelttest.git
cd excelttest
See https://github.com/PotOfCoffee2Go/simply-trello README.md for how to get a Trello key/token.
npm install
node obseatingchart.js
If you log onto Trello while obseatingchart.js is running you should see a Personal Board Seating Chart. Open it and will see the cards as they are being added.