Ah I see. Try this then :
#include <Excel.au3>
#include <MsgBoxConstants.au3>
#include <Array.au3>
#include <StringConstants.au3>
Local $sWorkbook = FileOpenDialog("Choose file loc Extract file", @ScriptDir, "ALL Excel Files (*.xlsx), *.xls")
Local $oExcel = _Excel_Open()
Local $oWorkbook = _Excel_BookOpen($oExcel, $sWorkbook)
;~ $oWorkbook = _Excel_BookAttach($sWorkbook)
Local $sMSN = InputBox("MSN NO", "Enter MSN in XX FORMAT", "")
_Excel_FilterSet($oWorkbook, $oExcel.ActiveSheet, "AF1", 32, "*" & $sMSN & "*")
Local $oFilter= $oExcel.ActiveSheet.AutoFilter.Range.Rows.SpecialCells($xlCellTypeVisible).copy
Local $oNewSheet = _Excel_SheetAdd ($oWorkbook, Default, False, 1, "Temp")
$oNewSheet.paste
$oNewSheet.Range("A1").Select
Local $LastRow = $oWorkbook.ActiveSheet.Usedrange.Rows.Count
Local $aLocDS = _Excel_RangeRead($oWorkbook, Default, "S1:S" & $LastRow)
Local $aLocNr = _Excel_RangeRead($oWorkbook, Default, "A1:A" & $LastRow)
_Excel_SheetDelete ($oWorkbook)
_ArrayDisplay($aLocDS)
_ArrayDisplay($aLocNr)