Not flash, but PDF and DOCX/XLSX should work okay. I have not thought about Flash, but I totally get the point you make. It looks like it would be very useful

Not flash, but PDF and DOCX/XLSX should work okay. I have not thought about Flash, but I totally get the point you make. It looks like it would be very useful as they are big attack vectors and usually not supported on mobile. Thank you for this feedback.