p.224. "how to use Calc's". Straight ASCII apostrophe. There's a split infinitive in this sentence too but I can't see any way of removing it without awkwardness.
p.225. last paragraph but one "If you are continuously working with the same range...". I think this should be formatted as a tip.
p.226. "Brigitte's sales". Straight ASCII quotes.
p.232. "See page 232" Self-reference!