natural,two,three
1,2,3
2,4,6
3,6,9
4,8,12
5,10,15
6,12,18
7,14,21
8,16,24
9,18,27
10,20,30

documentclass{article}
usepackage{pgfplotstable}
begin{document}
pgfplotstabletypeset[
    col sep=comma,
    string type,
    columns/name/.style={column name=natural, column type={|l}},
    columns/surname/.style={column name=two, column type={|l}},
    columns/age/.style={column name=three, column type={|c|}},
    every head row/.style={before row=hline,after row=hline},
    every last row/.style={after row=hline},
    ]{contents.csv}
end{document}