Include and use the PHPSpreadsheet library. This should be pretty straightforward and easy to understand: $stmt = $pdo->prepare('SELECT * FROM `users`')
(D) FETCH USERS + WRITE TO SPREADSHEET (C) CREATE A NEW SPREADSHEET + WORKSHEET Use PhpOffice\PhpSpreadsheet\Writer\Xlsx Use PhpOffice\PhpSpreadsheet\Spreadsheet PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_NAMED 3-db-spreadsheet.php PDO::ERRMODE_EXCEPTION,