foreach ($wb->sheets as $sheetName => $sheet)
{
	echo'<h1>' . $sheetName . '</h1>';
	echo'<table cellspacing = "0">';
	for ($row = 0; $row < $sheet->rows (); $row ++)
	{
		echo'<tr>';
		for ($col = 0; $col < $sheet->cols (); $col ++)
		{
			if (!isset ($sheet->cells [$row][$col])) continue;
			$cell = $sheet->cells [$row][$col];
			echo'<td style = "' . $cell->style->css () . '" rowspan = "' . $cell->rowspan . '" colspan = "' . $cell->colspan . '">';
			echo is_null ($cell->value) ? ' ' : $cell->value;
			echo'</td>';
		}
		echo'</tr>';
	}
	echo'</table>';
}