I have been notified about an error in the XP calculation spreadsheet. Upon revisiting the rules, I realize I have really borked the special abilities/extraordinary abilities section (letting it be an either/or and only counting it once). Sooo, at some point in the near future I will modify it to allow for both to be selected and more than once if the monster has more than one.
Sorry for the inconvenience on this one. Strictly a misinterpretation of the rules, one that I have apparently been making for ages.:( As a RAW (Rules as Written) DM, thanks to the user that reported this, I will make the correction.