This visualization displays basic metadata about a primary energy dataset, showing the total row count, column count, and file size in kilobytes, along with a JSON-formatted preview of the first ten rows. It uses d3.csv to load the data from a remote CSV file and d3.csvFormat to calculate the dataset’s size in kilobytes. The output is rendered in a monospaced pre element with a black background and green text, styled via CSS. The code relies on d3-selection’s select and append methods to build the page content.