This example summarizes the contents of a Udemy courses dataset by displaying the file size, row count, and column count in large text. It loads a CSV file from a GitHub gist using `d3.csv` and formats the raw data with `d3.tsvFormat` to compute the kilobyte size. The visualization explicitly demonstrates both the primary `d3.csv` approach and commented-out alternatives using `fetch` with async/await and nested promises. The dataset originates from Kaggle and covers four course subjects.