I've read the book of Enoch, I don't see where it disagrees with any canonized scriptures. Enoch 1 starts out saying, this book is not for this generation, but for a distant generation to come...and our canonized scripture says...in the last days knowledge of God will be increased. Well, these are the last days. Knowledge is being increased.
The way I figure it, if the book of Enoch was a...carefully crafted fable, then it would be endorsed by the world. Well it is not endorsed. Their main weapon and tool is deception, we know that. Plus, Jesus did quote Enoch in Jude. From what I understand, it was lost for many years and "rediscovered" in the latter part of last century...so thats prolly the Holy Spirit's work. Many professing Christians say they believe that Jesus rose from the dead, and that the canonized scripture is the word of God, but will have tunnel vision and reject any teachings that are not in our canon...so if knowledge is said that it will increase in the last days...(so that must be true), where is it going to come from if all we have that is true is the canon?
Our scripture: The Holy Spirit will lead you into all truth. We're 'sposed to study to show ourselves approved. So wouldn't rejecting new teachings from the Holy Spirit be blasphemy? In the OT, it is replete with examples of, before God carries out a judgment, He always sends His Prophets to warn the people. Prophets are not well received nowadays either. I think thats dangerous to reject new knowledge even if it's something you don't like.
It doesnt say that the Holy Spirit will lead you into some truth. It says all truth. So study hard with an open mind, and pray hard about these things. God is not one to not deliver on His promises.