This example demonstrates the minimal steps for loading external CSV data into a React component using D3’s `d3.csv` method. It displays a text summary of the loaded dataset—rows, columns, and file size in kilobytes—computed with `d3.csvFormat`. The React `useState` hook holds the fetched data, while `useEffect` triggers the asynchronous CSV request. The visualization uses a simple styled `<pre>` element and relies on React 16.9 and D3 v7.