How do you open a door on a 1995 Chevy Beretta that will not open either way?

If the door on your 1995 Chevy Beretta won't open, first check if the door lock is engaged. Try using the key or remote to unlock it, as a stuck lock mechanism can prevent the door from opening. If that doesn't work, you may need to remove the interior door panel to access the locking mechanism directly or use a slim jim or similar tool to manipulate the lock from the outside. If you're not comfortable doing this, it might be best to consult a professional locksmith.