fpSpread1.Sheets[0].AddRowHeaderSpanCell(0, 0, 1, 2);
listBox1.Items.Add(fpSpread1.Sheets[0].GetRowHeaderSpanCell(0, 0).ToString());
FpSpread1.Sheets(0).AddRowHeaderSpanCell(0, 0, 1, 2)
ListBox1.Items.Add(FpSpread1.Sheets(0).GetRowHeaderSpanCell(0, 0).ToString())