This example demonstrates how to load and summarize a dataset within a React component using D3 utilities. It fetches a CSV file of CSS named colors via `d3.csv` and displays the row count, column count, and file size using `csvFormat`. React state tracks the loaded data, showing a loading message until the async request resolves. The visualization renders as plain text in an SVG-independent `<pre>` element, highlighting the integration of D3's data-loading APIs with React's state management.