parameterHeightSubDistrict = $parameterHeightSubDistrict; } public function view(): View { $excelData = []; foreach ($this->parameterHeightSubDistrict as $subDistrict => $data) { $row = [ 'sub_district' => $data['sub_district'], 'year' => $data['year'], 'height' => $data['height'] ]; $excelData[] = $row; } return view('website.export.excel-parameter-height-sub-district', [ 'parameterHeightSubDistrict' => $excelData ]); } public function styles(Worksheet $sheet) { $highestColumn = $sheet->getHighestColumn(); $highestColumnIndex = Coordinate::columnIndexFromString($highestColumn); for ($col = 1; $col <= $highestColumnIndex; $col++) { $columnLetter = Coordinate::stringFromColumnIndex($col); $sheet->getColumnDimension($columnLetter)->setAutoSize(true); } } }