vba 2007 ActiveWorkbook.SaveAs problem
在使用vba保存生成的excel文件后，然后在打开总是提示格式不对，不管提示，进入后格式时对的，数据也可以显示。
最后google之，原来在2003之后使用ActiveWorkbook.SaveAs时必须指定文件类型。
51 = xlOpenXMLWorkbook (without macro’s in 2007, .xlsx)
52 = xlOpenXMLWorkbookMacroEnabled (with or without macro’s in 2007,
.xlsm)
50 = xlExcel12 (Excel Binary Workbook in 2007 with or without macro’s,
.xlsb)
56 = xlExcel8 (97-2003 format in Excel 2007, .xls)