How to tell if an OLE object is an Excel spreadsheet?

I was hoping to find the solution in the "Get OLE Object Data Example" topic, but all I can see is Clsid which isn't giving me what I think I need (for example, Word.Document or Excel.Sheet).

If you assumed an SW drawing had 2 embedded Excel sheets and 1 Word doc, how could you pick out the ones that were for Excel?

Bonus points: Is there some sort of identifier than can be used for a user prompt to allow them to select which one of the excel OLE objects to manipulate (this is done in an add-on, so they don't need to double-click it).

Thanks.

SolidworksApi macros