PB用OLE创建Excel后，打开时却提示“您尝试打开的文件 的格式与文件扩展名指定的格式不一致”

str_savefilename_xls=gs_exportpath + "转换_" + dw_1.getitemstring(filerowi,"filename") + ".xls"
ObjExcel.activeworkbook.saveas(str_savefilename_xls,18)

ObjExcel.activeworkbook.saveas(str_savefilename_xls,18)
添加一个参数即可。
中文的msdn上写的xlAddIn-18对应的是2007，我测试了一下，发现中文msdn上是错误的。如果想保存成xlsx，请使用xlWorkbookDefault-51，并且后缀改为xlsx。

API [ https://msdn.microsoft.com/en-us/vba/excel-vba/articles/workbook-saveas-method-excel ]
SaveAs( FileName , FileFormat , Password , WriteResPassword , ReadOnlyRecommended , CreateBackup , AccessMode , ConflictResolution , AddToMru , TextCodepage , TextVisualLayout , Local )

FileFormat [ https://msdn.microsoft.com/en-us/vba/excel-vba/articles/xlfileformat-enumeration-excel ]

Name	Value	Description
xlAddIn	18	Microsoft Excel 97-2003 Add-In
xlAddIn8	18	Microsoft Excel 97-2003 Add-In
xlCSV	6	CSV
xlCSVMac	22	Macintosh CSV
xlCSVMSDOS	24	MSDOS CSV
xlCSVWindows	23	Windows CSV
xlCurrentPlatformText	-4158	Current Platform Text
xlDBF2	7	DBF2
xlDBF3	8	DBF3
xlDBF4	11	DBF4
xlDIF	9	DIF
xlExcel12	50	Excel12
xlExcel2	16	Excel2
xlExcel2FarEast	27	Excel2 FarEast
xlExcel3	29	Excel3
xlExcel4	33	Excel4
xlExcel4Workbook	35	Excel4 Workbook
xlExcel5	39	Excel5
xlExcel7	39	Excel7
xlExcel8	56	Excel8
xlExcel9795	43	Excel9795
xlHtml	44	HTML format
xlIntlAddIn	26	International Add-In
xlIntlMacro	25	International Macro
xlOpenDocumentSpreadsheet	60	OpenDocument Spreadsheet
xlOpenXMLAddIn	55	Open XML Add-In
xlOpenXMLStrictWorkbook	61 (&;H3D)	Strict Open XML file
xlOpenXMLTemplate	54	Open XML Template
xlOpenXMLTemplateMacroEnabled	53	Open XML Template Macro Enabled
xlOpenXMLWorkbook	51	Open XML Workbook
xlOpenXMLWorkbookMacroEnabled	52	Open XML Workbook Macro Enabled
xlSYLK	2	SYLK
xlTemplate	17	Template
xlTemplate8	17	Template 8
xlTextMac	19	Macintosh Text
xlTextMSDOS	21	MSDOS Text
xlTextPrinter	36	Printer Text
xlTextWindows	20	Windows Text
xlUnicodeText	42	Unicode Text
xlWebArchive	45	Web Archive
xlWJ2WD1	14	WJ2WD1
xlWJ3	40	WJ3
xlWJ3FJ3	41	WJ3FJ3
xlWK1	5	WK1
xlWK1ALL	31	WK1ALL
xlWK1FMT	30	WK1FMT
xlWK3	15	WK3
xlWK3FM3	32	WK3FM3
xlWK4	38	WK4
xlWKS	4	Worksheet
xlWorkbookDefault	51	Workbook default
xlWorkbookNormal	-4143	Workbook normal
xlWorks2FarEast	28	Works2 FarEast
xlWQ1	34	WQ1
xlXMLSpreadsheet	46	XML Spreadsheet