Hy i'm using php excell to export some data from my db, one of the collum have full path of a image, instead of show me the path it is possible to make a link? like <a href="row[photo]">Link</a> ? i've tryied to search but nothing...i'm using the lasted phpexcell class

You might want to try the HYPERLINK() formula. Haven't tested this, just looked up some info on the net. See also this link.

Sory to come back so late, was quite busy. The approach actually works for me. This is a script, adapted from the example 3 of the PHPExcel examples:

/** Error reporting */
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);

define('EOL',(PHP_SAPI == 'cli') ? PHP_EOL : '<br />');

/** Include PHPExcel */
// Use correct path here
$excelClass = '../../PHPExcel/Classes/PHPExcel.php';
require_once $excelClass;

$objPHPExcel = new PHPExcel();

// Set document properties
echo date('H:i:s') , " Set document properties" , EOL;
$objPHPExcel->getProperties()->setCreator("Maarten Balliauw")
                             ->setLastModifiedBy("Maarten Balliauw")
                             ->setTitle("Office 2007 XLSX Test Document")
                             ->setSubject("Office 2007 XLSX Test Document")
                             ->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.")
                             ->setKeywords("office 2007 openxml php")
                             ->setCategory("Test result file");

// set textual link and hyperlink by a formula
$objPHPExcel->getActiveSheet()->setCellValue('A1', 'TEXT')
                              ->setCellValue('A2', 'LINK')
                              ->setCellValue('B1', "http://www.daniweb.com")
                              ->setCellValue('B2', '=HYPERLINK("http://www.daniweb.com")');

// Rename worksheet

// Set active sheet index to the first sheet, so Excel opens this as the first sheet

// Save Excel 2007 file
$callStartTime = microtime(true);

$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');

//  If we set Pre Calculated Formulas to true then PHPExcel will calculate all formulae in the
//    workbook before saving. This adds time and memory overhead, and can cause some problems with formulae
//    using functions or features (such as array formulae) that aren't yet supported by the calculation engine
//  If the value is false (the default) for the Excel2007 Writer, then MS Excel (or the application used to
//    open the file) will need to recalculate values itself to guarantee that the correct results are available.
$objWriter->save(str_replace('.php', '.xlsx', __FILE__));

// Echo done
echo date('H:i:s') , " Done writing files" , EOL;