Don't do that. Your XML is invalid because of it. Please don't try to patch the XML parser to accept it, you're making life harder for everybody — XML parsers merciless rejecting invalid XML is a feature, forcing people to produce proper XML. Guessswork isn't doing anybody any good.

Instead, replace it with the proper Unicode character in the proper character encoding (UTF-8?) or as a numerical entity, in the XML file. It ought to work then.

You can find the equivalent character code (in hex) in that table I linked to, and it would seem to me that this is the one:

0x92	0x2019	#RIGHT SINGLE QUOTATION MARK

So "’" ought to do it. Test: "’"

p.s. Actually, you should get the source of the data to fix it, they did not do a proper job.