\ExplSyntaxOn\cs_set_eq:NN\etex_iffontchar:D\tex_iffontchar:D\cs_undefine:N \c_one\int_const:Nn \c_one { 1 } \ExplSyntaxOff
%\documentclass[a4paper,12pt,openany,oneside]{article}
\documentclass[a4paper,12pt]{article}
%\documentclass[a4paper,12pt,oneside]{book}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage{fancyhdr}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage[usenames,dvipsnames]{xcolor}
\usepackage{colortbl}
\usepackage{amsmath,amssymb,amsthm,tabularx}
%\usepackage{scalerel}
\usepackage[left=1.4cm,right=1.7cm,top=1.3cm,bottom=1cm,headsep=0.3cm]{geometry}
\usepackage{roundbox,graphicx,framed}
\usepackage{makebox}
\usepackage{hhline}
\usepackage{tcolorbox}
\usepackage{relsize,exscale}
\usepackage{lipsum}
\usepackage{wasysym}
\usepackage{enumerate}
\usepackage{float}
\usepackage{xepersian}
\usepackage{pifont}
\usepackage{dashrule}
\usepackage{ptext}
\usepackage{pifont}
\usepackage{marvosym}
\usepackage{textcomp}
\pagestyle{fancy}
\fancyhf{}
\lhead{
	{\settextfont[Scale=0.6]{B Homa}
فصل اول
}
}
\rhead{thepage}
\settextfont[Scale=1.2]{Far.Nazanin}
\setdigitfont[Scale=1.2]{XB Niloofar}
\linespread{1.6}
%\setlength{\baselineskip}{1.5\baselineskip}
%\DeclareMathSizes{12}{15}{9}{8}
%\PersianMathsDigits
\defpersianfont\nas[Scale=2.5]{IranNastaliq} 
\newcommand*{\Scale}[2][4]{\scalebox{#1}{$#2$}}%
%\newcommand*{\Resize}[2]{\resizebox{#1}{!}{$#2$}}%
%\renewcommand{\baselinestretch}{1}\normalsize
\newcommand{\by}{\hspace{0.0001em}{\times}\hspace{0.0001em}}
\renewcommand{\arraystretch}{1.2}%%%%%%%%%%%%%%%%%%%%%%%
%\newcommand*{\Scale}[2][4]{\scalebox{#1}{$#2$}}%
%\newcommand{\setlength{\intextsep}{10pt plus2pt minus3pt}}
\setlength{\intextsep}{10pt plus2pt minus3pt}
\pagenumbering{arabic}
\begin{document}
	این یک متن است
\end{document}