Booktabs table from csv

bootabs_table.tex

\usepackage{booktabs}
\usepackage{csvsimple}
...
...

\begin{table}
  \centering
  \caption{Example table.}
  \label{tab:tablelabel}
  \begin{tabular}{ll}
    \toprule
    $A$ & $B$\\
    \midrule
    % Add directly from csv reader
    % the csv file has names colnameA, colnameB
    \csvreader[head to column names, late after line=\\]{./data_file.csv}{
    colnameA=\colA,
    colnameB=\colB
    }{\colA & \colB}
    \bottomrule
  \end{tabular}
\end{table}