\documentclass[a4]{article}
\usepackage{endnotes}
\renewcommand{\notesname}{Endnotes}
\begin{document}
salam. This is a simple text\endnote{no doubt!}.

\notesname
\newpage
\begingroup
\parindent0pt
\parskip2ex
\def\enotesize{\normalsize}
\theendnotes
\endgroup
\newpage
\end{document}