将Word.InlineShape转换为Excel.Workbook c#

在Word文档中有一些excel.workbooks。

我可以得到Word.Inline形状,但我需要将它们转换为Excel.Application

Word.InlineShapes shapes=wordApp.ActiveDocument.InlineShapes; 

那些形状通过创build

 wordApp.Selection.InlineShapes.AddOLEObject("MSGraph.Chart.8", excellApp.ActiveWorkbook.Name, false, false, Type.Missing, Type.Missing, Type.Missing, Type.Missing); 

我怎样才能将它们再次转换为Excel.Workbook?

我也试过;

 Word.InlineShapes shapes = wordApp.ActiveDocument.InlineShapes; foreach(Word.Shape shape in shapes) { Word.Chart chart = shape.Chart; } 

但它抛出未实现的exception。

尝试这个:

 Word.OLEFormat ole = shape.OLEFormat; ole.Activate(); Excel.Workbook book = (Excel.Workbook)ole.Object;