This example displays the metadata of a two-week weight loss treatment dataset, showing the file size in kilobytes, row count, and column count in large green text. After clicking a link to a raw CSV file, D3 v7’s `d3.csv` loads the remote data and `d3.csvFormat` calculates its size. The page uses CSS for a background image and positions the results within a `<pre>` element, while the raw data link is provided as an external gist URL.