Creating an Excel download

If you are just trying to create a spreadsheet download, consider PHP's built in functions:

http://php.net/manual/en/function.fputcsv.php

Code:

<?php

$list = array (
    array('aaa', 'bbb', 'ccc', 'dddd'),
    array('123', '456', '789'),
    array('"aaa"', '"bbb"')
);

$fp = fopen('file.csv', 'w');

foreach ($list as $fields) {
    fputcsv($fp, $fields);
}

fclose($fp);
?>

I make quite a few CSV files using code similar to this.

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