PHPOffice / PhpSpreadsheet

                break;

            case 0x3A:    //    3d reference to cell

            case 0x5A:

            case 0x7A:

                $name = 'tRef3d';

                $size = 7;

                try {

                    // offset: 1; size: 2; index to REF entry

                    $sheetRange = $this->readSheetRangeByRefIndex(self::getInt2d($formulaData, 1));

                    // offset: 3; size: 4; cell address

                    $cellAddress = $this->readBIFF8CellAddress(substr($formulaData, 3, 4));

                    $data = "$sheetRange!$cellAddress";

                } catch (\PhpOffice\PhpSpreadsheet\Exception $e) {

                    // deleted sheet reference

                    $data = '#REF!';

                }

                break;

            case 0x3B:    //    3d reference to cell range

            case 0x5B:

            case 0x7B:

                break;

            case 0x3B:    //    3d reference to cell range

            case 0x5B:

            case 0x7B:

                $name = 'tArea3d';

                $size = 11;

                try {

                    // offset: 1; size: 2; index to REF entry

                    $sheetRange = $this->readSheetRangeByRefIndex(self::getInt2d($formulaData, 1));

                    // offset: 3; size: 8; cell address

                    $cellRangeAddress = $this->readBIFF8CellRangeAddress(substr($formulaData, 3, 8));

                    $data = "$sheetRange!$cellRangeAddress";

                } catch (\PhpOffice\PhpSpreadsheet\Exception $e) {

                    // deleted sheet reference

                    $data = '#REF!';

                }

                break;

            // Unknown cases    // don't know how to deal with

            default:

                throw new Exception('Unrecognized token ' . sprintf('%02X', $id) . ' in formula');