/**
* Test action
*
* @param array $params
* @return void
*/
protected function _execute(array $params)
{
$base = new Model_Base();
$options = $base->getOptions();
$excel = new Model_Excel();
$file = DOCROOT . '/upload/task/file.xlsx';
$load = $excel->load_xls($file, 602, $options['xls_offset'], $options['xls_limit']);
$new_offset = $options['xls_offset'] + $options['xls_limit'];
$options = $base->saveOptions(array('xls_offset' => $new_offset));
}