public function current()
	{
		if( $this->iterator->valid() === false ) {
			return null;
		}

		$iterator = $this->iterator->current()->getCellIterator();
		$iterator->setIterateOnlyExistingCells( false );

		$result = [];

		foreach( $iterator as $cell ) {
			$result[] = $cell->getValue();
		}

		return $result;
	}