Upvote:2
As a Presbyterian coming from a reformed tradition, we would see the canon of scripture defined by the Hebrew Bible which is received by the Jewish community as the books which represent the "rule of faith" for the community In addition, we accept the 27 Greek books called the New Testament as the books inspired by God to represent the unchanging teaching of the Apostles. (http://www.bible-researcher.com/bruce1.html for discussion of the development of the New Testament can)
The Westminister Confession of Faith which is the doctrinal standard for Presbyterians state:
III. The books commonly called Apocrypha, not being of divine inspiration, are no part of the Canon of Scripture; and, therefore, are of no authority in the Church of God, nor to be any otherwise approved, or made use of, than other human writings. (Chapter One)
So while these books are not seen as being part of inspired scripture they may as any human books have useful information in them. Only when statements in these books would make statements contrary to the Hebrew Bible and New Testament would such statements be considered "heretical." We would not see the whole books as such.
These books, for instance, may provide useful historical information on the thinking of the Jews from the end of the Hebrew Bible to the beginning of the New ( a period of about 400 years. ) So we would not see the entire books as heretical.