Vendor/phpspreadsheet/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Xls.php
private function readDefault()
    {
        $length = self::getUInt2d($this->data, $this->pos + 2);

        // move stream pointer to next record
        $this->pos += 4 + $length;
    }
private function readDefault()
    {
        $length = self::getUInt2d($this->data, $this->pos + 2);

        // move stream pointer to next record
        $this->pos += 4 + $length;
    }
Reads a general type of BIFF record. Does nothing except for moving stream pointer forward to next record.