# Header of the table must be centered, all other rows aligned to left

I have this MWE:

\documentclass{article}
\usepackage{multirow}
\begin{document}
\begin{table}[here]
\begin{center}
\begin{tabular}{|l|l|c|}
\hline
\multicolumn{2}{|c|}{\textbf{SED}} & \multirow{2}{*}{\textbf{\% compressione}} \                \cline{1-2}
\textbf{MC} & \textbf{DP} & \\
\hline
\hline
0.00016032 & 0.0001750267 & 10\%\               \hline
\end{tabular}
\end{center}
\end{table}
\end{document}


It realizes this image:

The first two columns are correctly formatted to the left, but I want it so that just MC and DP will be centered, how can I do that?

-
I suggest you read the documentation of the package booktabs, see CTAN: tug.ctan.org/pkg/booktabs –  Sveinung May 8 '12 at 17:42

Like you did it with the "SED": with \multicolumn:

\multicolumn{1}{|c|}{\textbf{MC}}

-

The makecell package can be handy here, as it allows to have a common formatting for all coumn headers declared in preamble. It also defines a command for hlines of varying thickness. Consider also using the booktabs package:

\documentclass{article}
\usepackage[utf8]{inputenc}

\usepackage[x11names]{xcolor}

\usepackage{array, booktabs}
\usepackage{makecell}
\setcellgapes{3pt}

\begin{document}

{\makegapedcells
\begin{tabular}{!{\vrule width1pt}p{.5in}|p{1in}|p{1in}|p{1in}!{\vrule width1pt}}
\Xhline{1pt}
\hline
a & b & c & d\\
\Xhline{1pt}
\end{tabular}}
\vskip 1cm
\begin{tabular}{p{.5in}*{3}{p{1in}}}
\toprule