[Tex/LaTex] Remove vertical line in tabular head

tables

I want to go from this:
Image with line

To:
enter image description here

I have the following LaTeX:

\begin{tabular}{p{8cm}|c|c|c|c|c}
\textbf{Functionality} &
\rot{Old ICCS engine} &
\rot{Current ICCS engine} &
\rot{Confious system} &
\rot{OpenConf} &
\rot{START} \\

\hline

Customizable conference settings & & & & & \\

\end{tabular}

What should I do?

Best Answer

You can use \multicolumn to override the declared format specification for a cell:

\begin{tabular}{p{8cm}|c|c|c|c|c}
\multicolumn{1}{l}{\textbf{Functionality}} &
\rot{Old ICCS engine} &
\rot{Current ICCS engine} &
\rot{Confious system} &
\rot{OpenConf} &
\rot{START} \\
\hline
Customizable conference settings & & & & & \\
\end{tabular}
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