GrapeCity.Win.Spread.InputMan.CellType.GcNumberCellType ncell1 = new GrapeCity.Win.Spread.InputMan.CellType.GcNumberCellType();
ncell1.Fields.SetFields("###.##", "", "", "-", "");
ncell1.ExcelExportFormat = "###.#";
fpSpread1.ActiveSheet.Cells[1, 1].CellType = ncell1;
fpSpread1.ActiveSheet.Cells[1, 1].Value = 12.31;
listBox1.Items.Add(ncell1.ExcelExportFormat);
Dim ncell1 As New GrapeCity.Win.Spread.InputMan.CellType.GcNumberCellType()
ncell1.Fields.SetFields("###.##", "", "", "-", "")
ncell1.ExcelExportFormat = "###.#"
fpSpread1.ActiveSheet.Cells(1, 1).CellType = ncell1
fpSpread1.ActiveSheet.Cells(1, 1).Value = 12.31
ListBox1.Items.Add(ncell1.ExcelExportFormat)