New Post: Hyperlinks are not opening from Microsoft Excel (PHPExcel)

I am using the following code to generate hyperlinks in excel

$objPHPExcel->getActiveSheet()->getCell($column_index . $row_index)->getHyperlink()->setUrl( 'http://www.c4online.me/c4v2/index.php?q=file');

The link opens when the file is opened using "LibreOffice Calc" on ubuntu and using "Numbers" on Mac. But when it comes to Microsoft Excel 2007 and 2010 I get the following warning:

the internet site reports that the item you requested could not be found ( HTTp/1.0 404)

Can you please tell me when did I go wrong?