# Change Table header cells formatting [closed]

How can I make header cells italic using pgfplotstable?

I load several csv files and add their content to an object using \pgfplotstablecreatecol. Then I use the following code to generate the table out that object: (note: the \expheader iterates over the files and generate a multicolumn header for each of them)

\pgfplotstabletypeset[
before row=\hline
\\ \hline,
after row=\hline,
}]


I tried also to use:

\pgfplotstabletypeset[