Magento CSV upload mass product with multiple images

in this file app/code/core/Mage/Catalog/Model/Convert/Adapter/Product.php add following code

$galleryData = explode(';',$importData["gallery"]);
foreach($galleryData as $gallery_img) {
try {
  $product->addImageToMediaGallery(Mage::getBaseDir('media') . DS . 'import' . $gallery_img, null, false, false);
} 
catch (Exception $e) {}
}

Add gallery column in csv file enter “image file name” with ‘;’ separate  and copy images in import folder then upload the CSV and run profiler