public void SaveCurrentWorksheet(string filename) { try { ItsWorksheet.SaveAs(filename, MissingValue, MissingValue, MissingValue, MissingValue, MissingValue, MissingValue, MissingValue, MissingValue, MissingValue); } catch (Exception ex) { MessageBox.Show(ex.Message, "Error!!!", MessageBoxButtons.OK, MessageBoxIcon.Error); } }