How to treat the first line of the data file as column labels in gnuplot?

I checked the documentation and I don't see a way to do it automatically, but you can manually set a title with

plot "file.txt" using 1:2 title "A" with lines smooth bezier ...

plot for [n=2:12] 'vv.csv' u 1:(column(n)) w lines title columnhead(n)

I didn't want to plot the first column of data hence n=2:.....

set key autotitle columnhead