This interactive web tool displays a preview of the first five rows of a CSV file loaded from a user-provided URL. It renders the data in a clean, stylized HTML table with a dark theme, showing column names as sticky headers and alternating row colors for readability. The interface includes a text input for the URL and a load button, with status and metadata (row and column counts) displayed dynamically. Built with D3.js for potential data handling, the example uses core DOM manipulation and CSS styling to present a functional CSV previewer.