This example demonstrates how to load and parse a CSV file in a React application using D3’s `csv` method. It fetches the CSS named colors dataset from a GitHub gist and displays a summary message showing the file size in kilobytes, row count, and column count. The React `useState` and `useEffect` hooks manage the asynchronous data loading, while `csvFormat` calculates the data size. Before the data arrives, a "Loading...." placeholder is shown in a large `pre` element.