It is the scholarly view that the Book of Enoch is written from about 300 BC to 50 BC. Thus, if they are right, the Book of Enoch must be a forgery, as it itself says that it is written by the preflood patriarch Enoch, thus making it the oldest book in the world. As a Bible believing christian, you must consider why then the brother of Jesus, the apostle Jude, did quote this "forgery." Either he and the whole bunch of apostles (because they too, were influenced by the Book of Enoch) were foolish enough to buy this false book - or it must be older than what the scholars say, and written by...
It is the scholarly view that the Book of Enoch is written from about 300 BC to 50 BC. Thus, if they are right, the Book of Enoch must be a forgery...