I have created a worksheet dynamically and then try to delete it at the end but when I delete the worksheet and try to save the workbook , a Null Pointer Exception is thrown . Please help me out . Thank you
Sample Code :-
Workbook workbook = new Workbook();
Worksheet worksheet = workbook.Worksheets[0];
worksheet.Name = "Sheet 7777";
worksheet.Range["A3"].Text = "Hello World";
workbook.SaveToFile("NEw File.xlsx", ExcelVersion.Version2016);
Worksheet sheet = workbook.Worksheets[1];
sheet.Name = "Hello";
workbook.SaveToFile("NEw File.xlsx", ExcelVersion.Version2016);
workbook.Worksheets.Remove("Sheet 7777"); // tried both , same exception is thrown
//workbook.Worksheets[0].Remove();
workbook.SaveToFile("NEw File.xlsx", ExcelVersion.Version2016);