modules/admin/catalogs/import_code.php

<?php
$f = fopen($_SERVER['DOCUMENT_ROOT'] . "/true.csv", "r") or die("Error!");
for ($i=0; $row_line=File_FGetCSV::fgetcsv($f,15000,";"); $i++) {
	$code = $row_line[0];
	$new_code = $row_line[5];
	$setup->db->autoExecute("catalogs_modifications",array('new_code'=>$new_code),DB_AUTOQUERY_UPDATE,"code='".$code."'");
}
fclose($f);
?>