sheetRowsNum error

[nigmamun]

Hello dears,

i get this error and compleatelly do not know how to fix this, because i used this script for 1 year and it works fine, but after i transfered all data it seems to become broken now.
 

This is the part of script:

#include <Excel.au3>
#include <File.au3>
Local $oExcel = _Excel_Open()

If @error Then
   MsgBox(0, "Cargo Sorter", "Error opening Excel: " & @error & @CRLF & "Extended: " & @extended)
   Exit
EndIf

;Реестр 3 кв 4 кв.xlsm

Local $oWorkbook = _Excel_BookOpen($oExcel,@ScriptDir & "\Реестр 3 кв 4 кв.xlsm")
Local $sheetRowsNum = $oWorkbook.Sheets(1).UsedRange.Rows.Count
;MsgBox(0, '', $oWorkbook.Sheets(1).UsedRange.Rows.Count)

Here is an error:

[Danp2]

Are you sure that file exists in the script directory? Try checking for errors following the call to _Excel_BookOpen.

[nigmamun]

Thank you so much, you gave me the idea that file name can be incorrect and a found mistake in extention of excel format.
.xlsm instead of .xlsx