Hello
Thanks for your request. It seems what you are asking for is not actually OLE objects. This is the data of OOXML Diagrams and Charts. MS Word stores data as excel documents inside DOCX document. We will consider adding ability to access data of OOXML Diagrams and Charts. I linked your request to the appropriate issue. You will be notified as soon as it is resolved.
Best regards,
Andrey Noskov
Developer/Technical Support
Aspose Auckland Team