Mine

<?php
require_once 'Spreadsheet/Excel/Writer.php';

   	$workbook = new Spreadsheet_Excel_Writer('test.xls');
	$worksheet =& $workbook->addWorksheet('My first worksheet');

	include("../../includes/connect.php");
	$query = mysql_query("SELECT * FROM arbejdsopgaver ORDER BY id");
	while($row = mysql_fetch_array($query)) {

	$worksheet->write(0, 0, 'ID');
	$worksheet->write(0, 1, 'Opgavenavn');
	$worksheet->write(0, 2, 'Start');
	$worksheet->write(0, 3, 'Stop');
	$worksheet->write(0, 4, 'Tid i alt');
	$worksheet->write(0, 5, 'Navn');
	$worksheet->write(0, 6, 'Beskrivelse');
	$worksheet->write(1, 1, $row["id"]);
	$worksheet->write(1, 2, 'test');
	}
$workbook->close();
?>