[Framers] Embedding attachments in FM that remain attachments when PDF'd

[Monique Semp]

What about just including an appropriate icon as an image (so the Excel 
worksheet symbol, for example), and hyperlinking it to the external file in 
the same way one would add a URL?

I haven't tried it out myself, so just a thought. I did a quick google (I'm 
not currently using FrameMaker, so didn't want to take the time to 
experiment myself), and here's a rather old (2011) discussion about 
different possibilities: https://forums.adobe.com/thread/942300.

-Monique