private void btnnewSheet_Click(object sender, EventArgs e) { ExcelBinder excelbinder = new ExcelBinder(); excelbinder.NewDocument(); excelbinder.Visible = true; excelbinder.AddNewSheet("Test1"); excelbinder.SetValue("A1", "test1"); excelbinder.AddNewSheet("Test2"); excelbinder.SetValue("A1", "test2"); excelbinder.SaveDocument(Path.Combine(Environment.CurrentDirectory, "testnewsheet.xlsx")); excelbinder.CloseDocument(); excelbinder.QuitDocument(); }