Why just not to look into modules/Product_Options/import_ex.php
Code:
$mrow = func_query("SELECT $sql_tbl[class_options].optionid, $sql_tbl[classes].class, $sql_tbl[class_options].option_name as 'option', $sql_tbl[product_options_ex].exceptionid FROM $sql_tbl[classes], $sql_tbl[products], $sql_tbl[class_options], $sql_tbl[product_options_ex] WHERE $sql_tbl[classes].classid = $sql_tbl[class_options].classid AND $sql_tbl[class_options].optionid = $sql_tbl[product_options_ex].optionid AND $sql_tbl[classes].productid = $sql_tbl[products].productid AND $sql_tbl[classes].productid = '$id'".(empty($provider_sql) ? "" : " AND $sql_tbl[products].provider = '$provider_sql'")." ORDER BY $sql_tbl[product_options_ex].exceptionid");