I downloaded Office Pro 6 on my Asus Transformer, but when I want to use it all I get is "network error" and it offers me to close the application. I can't seem to do anything to improve the situation.
It seems that this error is rarely encountered between users. Please try and uninstall the application and clear the Google Play's cache by using the settings of the application. You could also try and install the free version and see if it works in order to establish if something is wrong with the application or your tablet. The free version should start without asking you to enter a key code or something. Try and see if this approach is good for you.