Work on excel file from access vba

[roberto21]

I need to edit a couple of fields of a record in excel sheet, following certain operations in access.The code I am using follows (VBA access).

Private Sub AggiornaLibroSoci(NTes As String)
    Dim xlapp As Excel.Application
    Dim xlBook As Excel.Workbook
    Dim xlSheet As Excel.Worksheet
    Dim xldata As Excel.Range
    Dim ExcelPath As String
    Dim rowNo As Long


    ExcelPath = CurrentProject.Path & "\"
    Set xlapp = CreateObject("Excel.Application")
    Set xlBook = xlapp.Workbooks.Open(ExcelPath & "LibroSoci.xlsm")
    Set xlSheet = xlBook.Worksheets("LibroSoci")
    
    xlSheet.Select
    xlSheet.Activate
    
   ' With ActiveSheet
        rowNo = xlBook.Worksheets("LibroSoci").Range("C:C").Find(What:=NTes, LookIn:=xlValues).Row
        xlBook.Worksheets("LibroSoci").Cells(rowNo, 12) = Year(Date)
        
        If Me.Nuova_TessElett <> "" Then
            xlBook.Worksheets("LibroSoci").Cells(rowNo, 37) = Me.Nuova_TessElett
                
        End If
   ' End With
    
    xlBook.Save
    xlBook.Close
    
    Set xlSheet = Nothing
    Set xlBook = Nothing
    Set xlapp = Nothing
End Sub

This code does not work: I get a compile error, "variable not defined", pointing to LookIn:=xlValues.
Note that:
1) The excel table is linked to the access app, but I cannot edit the linked file directly: Starting from version 2003, Microsoft removed the possibility of editing linked excel files from access due to "legal reasons". So I have to work on the excel file itself.
2) I could import the file, make the changes and re-export the file: but I cannot re-export to the same file, only to a new one, so the process becomes cumbersome
3) The Microsoft Excel 16.0 Object library is already included

I am using Access and Excel in Office 2016.

What am I missing in trying to operate on excel file from Access VBA? Thank you for any suggesrtion.