Macro in Access to select a Word doc

[pandajam]

I know how to merge data from an Access Form into a Word document but is it possible to create a macro that will open a specific Word document based on the data in the form.

EG.
If Field "A" in the Access form says "YES" then merge data into Letter 1 in Word.
If field "A" in the Access form says "NO" then merge data into Letter 2 in Word.