Using a simple preposition:
All the other students took part in the final-exam. Bill was the only one who didn't.
Except Bill, all the other students took part in the final-exam./All the other students took part in the final-exam except Bill.
Using a simple preposition:
All the other students took part in the final-exam. Bill was the only one who didn't.
Except Bill, all the other students took part in the final-exam./All the other students took part in the final-exam except Bill.