They show up as two characters? That's very odd - it suggests perhaps UTF-8 would be appropriate, though you could also try CP1252. Anyway, there's no danger is changing the encoding, so just go through all of them and see whether any of them work. You're probably best deleting those then - they must have been saved with an incorrect encoding. Can you try re-adding them (just type them into Notes or something, just so they get added to the custom dictionary) and see whether they still show up incorrectly?