\documentclass{article}
\usepackage{xepersian}
\begin{document}

\begin{table}[!hbt]
\centering
\begin{tabular}{|p{1 cm}|p{1 cm}|p{0.5 cm}|}
\hline
11&22&34566455\\
\hline
\end{tabular}
\end{table}
\end{document}