Word macro to run from Excel

hi guys,

i have a word macro and i want to make it to work the same from excel.

Can anyone help me to customize it to work in Excel?

Sub ConvertWordsToPdfs()

    Dim directory   As Variant
    Dim file        As Object
    Dim files       As Object
    Dim folder      As Variant
    Dim n           As Long
    Dim newName     As String
    Dim wdDoc       As Document
    Dim Path       As String, FileFormat As String, filename As String
    
  Application.DisplayAlerts = False
  On Error Resume Next
    
        With Application.FileDialog(msoFileDialogFolderPicker)
            .Show
            If .SelectedItems.Count = 0 Then Exit Sub
            directory = .SelectedItems(1)
        End With

        With CreateObject("Shell.Application")
            Set folder = .Namespace(directory)
            Set files = folder.Items
            files.Filter 64, "*.docx"
        End With

            For Each file In files
                n = InStrRev(file.Name, ".")
                newName = Left(file.Name, n) & "pdf"

                Set wdDoc = Documents.Open(file.Path)
            
                wdDoc.SaveAs2 directory & "\" & newName, FileFormat:=17
              
                wdDoc.Close SaveChanges:=False
            Next file


  On Error GoTo 0
  Application.DisplayAlerts = True
End Sub

Also, if you can help. It seems that a colleagues of mine has a 32 bytes notebook and is not taking all the docx and transform them to pdf. Do you know why? I can;t use a Step -1 function here.

Thank you in advance,
Ionut