excel2latex table too many }s, wrong endgroups, and too many endgroups

Question

I am having issues inputting a table generated by excel2latex into my primary document.

I have called up packages bookends. And here is the code copied directly from excel2latex (in excel 2010 on a PC):

\begin{table}[htbp]  
  \centering  
  \caption{Add caption}  
    \begin{tabular}{rrrr}  
    \toprule  
    Group & Mean1 & Mean2 & Difference \\  
    \midrule  
    Men   & 2.6   & 3.6   & 1.0 \\  
    Women & 6.7   & 8.9   & 2.2 \\  
    \bottomrule  
    \end{tabular}%  
  \label{tab:junk}%  
\end{table}%  

With this code consistently I get the following 3 errors:

Too many }'s \end{table}  
\begin{document} ended by \end{table}. \end{table}  
Extra \endgroup \end{table}  

However, I can't seem to find any of these errors in the actual code.
I can't seem to get past these errors when the code is directly in the document or when input from a different file (as in \input{table_junk}).
Does anyone have any suggestions?