Excel.Application excelApp = null; Excel.Workbook workbook = null; Excel.Worksheet worksheet = null;

// Write data to cells worksheet.Cells[1, 1] = "Product"; worksheet.Cells[1, 2] = "Sales"; worksheet.Cells[2, 1] = "Laptop"; worksheet.Cells[2, 2] = 1500; worksheet.Cells[3, 1] = "Mouse"; worksheet.Cells[3, 2] = 25;

Console.WriteLine("Error: " + ex.Message);

// Initialize Excel application excelApp = new Excel.Application(); excelApp.Visible = false; // Run in background excelApp.DisplayAlerts = false;