Simple export excel

fiddle_178586.php

<?php 

$html = '<table border=1>
			<tr>
				<td>1</td>
				<td>2</td>
				<td>3</td>
				<td>4</td>
				<td>5</td>
			</tr>
		</table>';

if(isset($_POST['excel'])) {
	header('Content-type: application/ms-excel');
	header('Content-Disposition: attachment; filename=foo.xls');
	
	echo $html;
	
	return true;
}

?>

<form method='post'>
	<table>
		<tr><td><?php echo $html ?></td></tr>
		<tr><td><input type='submit' name='excel' value='Export' /></td></tr>
	</table>
</form>