xlBook.SaveAs(FilePath,Microsoft.Office.Interop.Excel.XlFileFormat.xlExcel8, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
發現Office.Interop.Excel.XlFileFormat.xlExcel8格式與本機安裝的office對不上，用Office.Interop.Excel.XlFileFormat.xlWorkbookNormal則可以
xlBook.SaveAs(FilePath, Microsoft.Office.Interop.Excel.XlFileFormat.xlWorkbookNormal, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);