ADP , MDB help

I hv adp and mdb files. When i double click them they oppen as application. But i wanna open them in design mode so that i could see whats in thr.
Is there any special key combination...
plz tell
thxi think it was hold down shift and double click but I do not encourage that kind of behavoir. I always used to compile mine before I gave them out to people but that changes the file extension.|||I have tried this so many times but it is not working
any other way...|||thx its workng now...