writing reading from a csv or txt file

[Jason Friedman]

>
> I am trying to compare the files. cutting out items in list list. ie:-
> first file (rainfall2012.csv)rainfall, duration,time of day,wind
> speed,date.
> first file (rainfall2013.csv)rainfall, duration,time of day,wind
> speed,date.
> I would like to pick out maybe rainfalls and duration's and measure
> against say years.
>
> Could you show us the first, say, three rows from each file, plus what you
would like the first three or six lines of output to be?
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