This example demonstrates how to load and parse a CSV file using D3 v7, displaying a summary of the data in a large text block. It fetches a gist-hosted CSV containing CSS named colors, then uses `d3.csv()` to parse the file and `d3.csvFormat()` to compute its size in kilobytes. The output shows the file size, row count, and column count, making the data structure immediately visible. Alternative approaches using `fetch` with `async`/`await` and `d3.csvParse()` are included as commented code.