This example demonstrates how to load external data in a React component using D3 utilities, displaying the dataset’s size and structure as formatted text. It fetches a CSV file of CSS named colors via D3’s `csv` method, stores the result in React state with `useState` and `useEffect`, and renders a message summarizing the file’s kilobytes, row count, and column count. The visualization updates from a “loading” placeholder to the final summary once the asynchronous data request resolves.