You need the library PHPExcel

$excelPath = 'Test.xls';

$objReader = PHPExcel_IOFactory::createReader('Excel5');
$objReader->setReadDataOnly(true);

$objPHPExcel = $objReader->load($excelPath);
$currentSheet = $objPHPExcel->getActiveSheet();
$AllImages= $currentSheet->getDrawingCollection();

if(count($AllImages) > 0) {
// To deal with
}