When sharing Microsoft files (Excel & PPT mainly), how do I set the default to send as an attachment

When sharing Microsoft files (Excel & PPT mainly), how do I set the default to send as an attachment?

I'm tired of having to click through several buttons to send files as an attachment rather than the current default of sending them as a link. 

The old "Alt+F+Z+E+A" was fantastic but I no longer can use that combo and instead have click through the new pop-up box.