While some of my geography quizzes have been using the same data set, for others I have needed to update data separately when I made a change to the overall list of cities I keep - i.e. I kept the list of two-word cities separate from the master list of cities. Over the next few weeks I hope to be making as many of the geo quizzes as I can use my one common master list of city info. This will make them update instantly whenever I make a change to the full dataset file.
Darin