To import images containing comma in image URL - Product Import Export for WooCommerce By WebToffee (https://wordpress.org/plugins/product-import-export-for-woo/)

functions.php

<?php // do not copy this line
add_filter('wt_woocommerce_product_importer_pre_parse_data', 'wt_alter_image_url');
 function wt_alter_image_url($value){
	    $value = str_replace(" ","",$value);
	    $image_urls =  str_replace(',https', '|https', $value);
		return $image_urls;
		}

add_filter('wt_woocommerce_product_import_image_separator', 'wt_default_separator');
 function wt_default_separator($default_separator){
	return '|';
}