PHPOffice / PhpSpreadsheet

                case 0x13: // 4 byte unsigned integer

                    // not needed yet, fix later if necessary

                    break;

                case 0x1E: // null-terminated string prepended by dword string length

                    $byteLength = self::getInt4d($this->summaryInformation, $secOffset + 4 + $offset);

                    $value = substr($this->summaryInformation, $secOffset + 8 + $offset, $byteLength);

                    $value = \PhpSpreadsheet\Shared\StringHelper::convertEncoding($value, 'UTF-8', $codePage);

                    $value = rtrim($value);

                    break;

                case 0x40: // Filetime (64-bit value representing the number of 100-nanosecond intervals since January 1, 1601)

                    // PHP-time

                    $value = \PhpSpreadsheet\Shared\OLE::OLE2LocalDate(substr($this->summaryInformation, $secOffset + 4 + $offset, 8));

                case 0x13:    //    4 byte unsigned integer

                    // not needed yet, fix later if necessary

                    break;

                case 0x1E:    //    null-terminated string prepended by dword string length

                    $byteLength = self::getInt4d($this->documentSummaryInformation, $secOffset + 4 + $offset);

                    $value = substr($this->documentSummaryInformation, $secOffset + 8 + $offset, $byteLength);

                    $value = \PhpSpreadsheet\Shared\StringHelper::convertEncoding($value, 'UTF-8', $codePage);

                    $value = rtrim($value);

                    break;

                case 0x40:    //    Filetime (64-bit value representing the number of 100-nanosecond intervals since January 1, 1601)

                    // PHP-Time

                    $value = \PhpSpreadsheet\Shared\OLE::OLE2LocalDate(substr($this->documentSummaryInformation, $secOffset + 4 + $offset, 8));