ader = rowIndex === 0;
                    const isLastRow = rowIndex === lastRowIndex;

                    excelCell.font = {
                        bold: isHeader || isLastRow,
                        size: isHeader ? 12 : 11,
                        color: {
                            argb: isHeader ? 'FFFFFFFF' :
                                isLastRow ? 'FF000000' :
                                'FF000000'
                        }
                    };

                    excelCell.fill = {
 