How to select office 2007 or any other office as default

sometime if we have more then two office installed in our system . then it can create problem for us . ie configuration etc . TO resolve this method first of all open the ms word step two click on office logo step three click on word or excel option step four click on customize step five now select commond not in the ribben step six select for all document step seven click ok now you dont need to wait for word to configuration word will open as as as possible thanks for remember