I've been spinning angora for almost 15 years now and have yet to card it. I have, on occasion, sent some along to a mill to be blended with wool.
How long has the fiber been bundled up in a plastic bag? Not a good sign if it has been anything less than recent. If you have mini-combs, or just a good metal comb, you could try combing some of it. You know, like you were making your own angora roving..... ?
When spinning pure angora, I prefer to just spin it without any prep. It simply doesn't need any.
Because! That's why.