printArea property
Represents the range to be printed
final Workbook workbook = Workbook();
final Worksheet sheet = workbook.worksheets[0];
sheet.getRangeByName('A1:M20').text = 'Hello';
sheet.pageSetup.printArea = 'A1:E20';
final List<int> bytes = workbook.saveAsStream();
saveAsExcel(bytes, 'printArea.xlsx');
workbook.dispose();
Implementation
late String printArea;