This example demonstrates how to begin using D3 version 6 by loading a customer card transaction dataset from a CSV file and displaying its metadata. It shows the dataset’s size in kilobytes, row count, and column count within a preformatted text container. The visualization uses the D3.js library’s `d3.csv` method to fetch and parse the external CSV, and `d3.csvFormat` to calculate data size. The page is styled with a custom background image and centered headings via CSS.