fpSpread1.ActiveSheet.AddCustomName("Alpha", "Sum(A1,A2)", 1, 1, true, "Comment");
fpSpread1.ActiveSheet.SetFormula(1, 1, "Alpha");
fpSpread1.ActiveSheet.SetValue(0, 0, 10);
fpSpread1.ActiveSheet.SetValue(1, 0, 10);
//Set scope to true for a sheet level custom name
//Set scope to false for a workbook level custom name
//fpSpread1.Sheets.Count = 3;
//fpSpread1.Sheets[0].AddCustomName("Alpha", "Sum(A1,A2)", 1, 1, false, "test");
//fpSpread1.Sheets[0].SetFormula(1, 1, "Alpha");
//fpSpread1.Sheets[0].SetValue(0, 0, 10);
//fpSpread1.Sheets[0].SetValue(1, 0, 10);
//fpSpread1.Sheets[1].SetFormula(1, 1, "Alpha");