The best way to do this is to use a ratchet with a long extension and from underneath the vehicle remove one of the mounting bolts that hold the latch bracket. This will allow you to pull up the hood...
You would be best off taking the car into an autoparts store because its a pretty difficult process, but you might be able to remove the panel underneath the steering wheel and that should alow you...
to open hood with broken cable.
You have to cut/break the front grill and then remove the latch by loosening 4 bolts.
Afterwards, you can pick up a used grill at the auto wreckers for about...