Scripting system prefs: desktop assignments & syntax changes

Question

The problem I have is that I use multiple external monitors, but frequently use my 2014 15" rMBP disconnected. My workday involves two externals being connected, with multiple apps being used on those monitors. Most apps play nicely with the respective desktop assignments. However, Microsoft Excel does not. When the externals are disconnected, Excel defaults to displaying on the laptop. When the externals are reconnected, Excel does not automatically re-assign itself to Desktop on Display 2 (even though this setting is selected via the dock). It is, frankly, a function of Excel not playing well with Mac. No biggie - but I have to close, reassign to all desktops, then reassign back to Desktop on Display 2, every day.
There should be an easy solution - a hot key linked to a command line code or AppleScript to solve this problem. In fact, I've located some options, but due to the changes in the way Mavericks' syntax is apparently structured, the options don't seem to work.
For example, a post relative to OS X 10.5 suggests:
tell application "System Events"
tell expose preferences
tell spaces preferences
However, when compiling this bit of script, I get an error that "Expected end of line but found application constant or consideration", relative to "expose preferences" and "space preferences".
If that problem did not occur, I imagine the full code might look like this:
tell application "System Events"
  tell expose preferences
  tell spaces preferences
    set x to application bindings
  set x to {|com.microsoft.Excel|:4} & x -- Have Excel appear in space 4
  end tell
  end tell
end tell
I hope someone out there can comprehend what I'm trying to accomplish and help me solve this …
Many thanks

Answer 1

Nevermind - after rebooting it is working ok now.