Vendor/phpspreadsheet/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Spreadsheet.php
public function getRibbonXMLData($what = 'all') //we need some constants here...
    {
        $returnData = null;
        $what = strtolower($what);
        switch ($what) {
            case 'all':
                $returnData = $this->ribbonXMLData;

                break;
            case 'target':
            case 'data':
                if (is_array($this->ribbonXMLData) && isset($this->ribbonXMLData[$what])) {
                    $returnData = $this->ribbonXMLData[$what];
                }

                break;
        }

        return $returnData;
    }
public function getRibbonXMLData($what = 'all') //we need some constants here...
    {
        $returnData = null;
        $what = strtolower($what);
        switch ($what) {
            case 'all':
                $returnData = $this->ribbonXMLData;

                break;
            case 'target':
            case 'data':
                if (is_array($this->ribbonXMLData) && isset($this->ribbonXMLData[$what])) {
                    $returnData = $this->ribbonXMLData[$what];
                }

                break;
        }

        return $returnData;
    }
retrieve ribbon XML Data.

return string|null|array

@param string $what

@return string