[Frank Cox]

That's nice and useful for adding additional info to a CSV.

And not so useful when you create a csv and import it and discover that you've misspelled a field name and the data wasn't imported as you expected it would be.

It would be nice if the program brought up some kind of a warning "Unknown field name, proceed anyway?" and then you'd have a chance to back out and change it instead of just charging ahead and finding out later....