This example demonstrates a concise display of CSV file metadata, presenting the data size in kilobytes, row count, and column count. The visualization loads a CSS named colors dataset from a GitHub gist using the D3 `csv` utility and React's `useState` and `useEffect` hooks. The app calculates and formats the summary with `d3.csvFormat`, and renders the result as large text in a `<pre>` element via ReactDOM, replacing a loading message once the data arrives.