Spreadsheet_Excel_Writer problem

I'm using Spreadsheet_Excel_Writer to generate a simple spreadsheet. When I test my code on my local server everything worked just fine, but when I uploaded the script to the remote host it keeps sending 0 bytes. And excel generates an error "unable to read file". I don't think there's a problem with the code, I think it has to do with the webserver, any clue guys? Ammar Ibrahim Anyway, here's the code // Creating a workbook $workbook = new Spreadsheet_Excel_Writer(); // Creating a worksheet $worksheet =& $workbook->addWorksheet('prices'); $row = 0; foreach( $prices as $price ){

             // The actual data, 2 columns, first netcoms code, second product retail price
       $worksheet->write($row, 0, $price->netcoms_code);
       $worksheet->write($row, 1, $price->retail_price);
             ++$row;

} // sending HTTP headers $workbook->send( 'db_extract.xls'); // Let's send the file $workbook->close();