PHPOffice / PhpSpreadsheet

        $objWriter->writeAttribute('applyFill', ($spreadsheet->getDefaultStyle()->getFill()->getHashCode() != $pStyle->getFill()->getHashCode()) ? '1' : '0');

        $objWriter->writeAttribute('applyBorder', ($spreadsheet->getDefaultStyle()->getBorders()->getHashCode() != $pStyle->getBorders()->getHashCode()) ? '1' : '0');

        $objWriter->writeAttribute('applyAlignment', ($spreadsheet->getDefaultStyle()->getAlignment()->getHashCode() != $pStyle->getAlignment()->getHashCode()) ? '1' : '0');

        if ($pStyle->getProtection()->getLocked() != \PhpOffice\PhpSpreadsheet\Style\Protection::PROTECTION_INHERIT || $pStyle->getProtection()->getHidden() != \PhpOffice\PhpSpreadsheet\Style\Protection::PROTECTION_INHERIT) {

            $objWriter->writeAttribute('applyProtection', 'true');

        }

        // alignment

        $objWriter->startElement('alignment');

        // protection

        if ($pStyle->getProtection()->getLocked() != \PhpOffice\PhpSpreadsheet\Style\Protection::PROTECTION_INHERIT || $pStyle->getProtection()->getHidden() != \PhpOffice\PhpSpreadsheet\Style\Protection::PROTECTION_INHERIT) {

            $objWriter->startElement('protection');

            if ($pStyle->getProtection()->getLocked() != \PhpOffice\PhpSpreadsheet\Style\Protection::PROTECTION_INHERIT) {

                $objWriter->writeAttribute('locked', ($pStyle->getProtection()->getLocked() == \PhpOffice\PhpSpreadsheet\Style\Protection::PROTECTION_PROTECTED ? 'true' : 'false'));

            }

            if ($pStyle->getProtection()->getHidden() != \PhpOffice\PhpSpreadsheet\Style\Protection::PROTECTION_INHERIT) {

                $objWriter->writeAttribute('hidden', ($pStyle->getProtection()->getHidden() == \PhpOffice\PhpSpreadsheet\Style\Protection::PROTECTION_PROTECTED ? 'true' : 'false'));

            }

            if ($pStyle->getProtection()->getLocked() != \PhpOffice\PhpSpreadsheet\Style\Protection::PROTECTION_INHERIT) {

                $objWriter->writeAttribute('locked', ($pStyle->getProtection()->getLocked() == \PhpOffice\PhpSpreadsheet\Style\Protection::PROTECTION_PROTECTED ? 'true' : 'false'));

            }

            if ($pStyle->getProtection()->getHidden() != \PhpOffice\PhpSpreadsheet\Style\Protection::PROTECTION_INHERIT) {

                $objWriter->writeAttribute('hidden', ($pStyle->getProtection()->getHidden() == \PhpOffice\PhpSpreadsheet\Style\Protection::PROTECTION_PROTECTED ? 'true' : 'false'));

            }

            $objWriter->endElement();

        }