code: private function readScenProtect()
      {
          $length = self::getUInt2d($this->data, $this->pos + 2);
          $recordData = $this->readRecordData($this->data, $this->pos + 4, $length);
  
          // move stream pointer to next record
          $this->pos += 4 + $length;
  
          if ($this->readDataOnly) {
              return;
          }
  
          // offset: 0; size: 2;
  
          // bit: 0, mask 0x01; 1 = scenarios are protected
          $bool = (0x01 & self::getUInt2d($recordData, 0)) >> 0;
  
          $this->phpSheet->getProtection()->setScenarios((bool) $bool);
      }
docs: SCENPROTECT.