The tutorial provides a step-by-step guide on how to export a CSV file with message resources using Twilio Programmable SMS and Python, specifically Flask. To accomplish this, one needs to set up a Twilio account, create a Flask application, install required packages, configure the environment variables, send messages, receive messages, reply to messages, and finally, export the message history as a CSV file. The tutorial also covers filtering messages by date and writing the contents of the CSV file.