adding custom column in analytics->Orders -> download csv

function somename_export_colunns( $export_columns ) {

$export_columns['city'] = 'City';

error_log(print_r($export_columns,true));

return $export_columns;

}

function somename_export_item( $export_item, $item ) {

$export_item['city'] = 'Test';

error_log(print_r($export_item,true));

return $export_item;

}

add_filter( 'woocommerce_report_orders_export_columns', 'somename_export_colunns');

add_filter( 'woocommerce_report_orders_prepare_export_item', 'somename_export_item', 10, 2);

iam tring to adding custom column in analytics->Orders -> download csv file. But above filter is not woking.