Create a custom shortcut in Enterprise Guide 8.4 to "Send to Microsoft Excel"? You have to go to "Share"...Output Data... Send to Microsoft Excel. It would be nice to just use a shortcut or create a custom button to do this.
Note that there is a Share --> Send to Microsoft Excel option on Table Viewer and on Table node in a process flow, so only 2 mouse clicks away. That option will open an Excel session with a new worksheet and put the data in that worksheet.