What impact did the Macedonian Empire have on the Byzantine empire?

Alexander the Great, the great conqueror of the ancient world, spread the Greek culture to all the territories he conquered. After his death, the empire was divided among his top generals. Those kingdoms kept their Greek cultural profile. The Byzantine Empire was the Roman Empire in the East. Unlike the Western Roman Empire that had adopted Latin as the official language and Roman law as the main legal source, the Byzantine Empire adopted Greek as its official language for administrative issues and for the Orthodox Church. The Byzantines saw themselves as the heirs of the classical Greek culture.