While trying to import sample data the copied data had lost the "Type" of the field names and access would not let me paste it. Instead it created a "Error" file in which I have tried to enter the correct field types (worked). But in this case it is much easier to import the complete file. Just for your info. Don't understand why this happened.

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Reply from Richard Rost:

I'm not sure what you did either. So far over ten-thousand people have taken this class, and you're the first to say something about it. :)