;XLRowToStringExample.au3
#include"ExcelCom.au3"
;****** Create Blank Files, then add some data to XL file as example in column "Z"  on 
$ReadXLPath=@ScriptDir&"\$ReadXLPath.xls"
_XLCreateBlank($ReadXLPath)
$DataString="12,7,6,9,23,45,3,17,18,9"&@CRLF&"3,12,7,6,9,23,45,3,17,18"&@CRLF&"3,12,8,6,9,23,45,3,17,18"&@CRLF&"3,12,9,6,9,23,45,3,17,18"
$DataString=StringReplace($DataString,",",@TAB)
$XLRange=_XLpaste($ReadXLPath,1,"Z",11,$DataString,1)
;****** Now Copy Desired range to File, and read line required as String*****************
;_XLRowToString($FilePath,$Sheet, $CopyRange,$Line)
$RowAsString=_XLRowToString($ReadXLPath,1, $XLRange,2)
msgbox (0," visible if shown", "$RowNumberToReadToString ="&$RowAsString)