static void Main(string[] args) { BookWrapper wrapper = ExcelUtil.CreateExcel(); SheetWrapper swrapper = wrapper.CreateSheet("Test"); CellPos pos = CellPos.CreateCellPos(0, 0); swrapper.SetText(pos, "Test"); Console.WriteLine("Cell: " + swrapper.GetText(pos)); Console.WriteLine("Cell Empty: " + swrapper.GetText(CellPos.CreateCellPos(1, 0))); sbyte[] t = wrapper.GetBytes(); wrapper.Save("c:\\temp\\test.xlsx"); BookWrapper w2 = ExcelUtil.LoadExcel(t); SheetWrapper s2 = w2["Test"]; Console.WriteLine(s2.GetText(CellPos.CreateCellPos(0, 0))); }