I’ve heard people call these “extra books”, like 1 and 2 Maccabees, apocryphal, and deuterocanonical. I’ve also heard that these books are not words of God. What exactly are these books then?
These links should be helpful for explaining the Church’s continued inclusion of the deuterocanonical books (sometimes referred to by Protestants as the Apocrypha, which BTW can also be found in the actual 1611 edition KJB which are still available.) in the Bible.