This example demonstrates how to load external CSV data within a React component using D3 utilities. It displays file size, row count, and column count for a dataset of CSS named colors fetched from a GitHub gist. The code uses React’s `useState` and `useEffect` hooks to manage asynchronous data loading, while `d3.csv` retrieves the data and `d3.csvFormat` measures its length. A loading message appears until the dataset is ready.