A CSV file with 500 columns (13.6 KB). Header: 'col_0', 'col_1', 'col_2', 'col_3', 'col_4', 'col_5', 'col_6', 'col_7', 'col_8', 'col_9', ... (500 total).
Tip: drop shallow=True to load and fully profile this file.