Box\Spout\Writer\AbstractWriter::addRows PHP Method

    public function addRows(array $dataRows)
    {
        if (!empty($dataRows)) {
            $firstRow = reset($dataRows);
            if (!is_array($firstRow)) {
                throw new InvalidArgumentException('The input should be an array of arrays');
            }
            foreach ($dataRows as $dataRow) {
                $this->addRow($dataRow);
            }
        }
        return $this;
    }