Disable on open event

[PLD60]

I have a workbook that the on open event opens a form. This works great. This form is only needed the first time the workbook is opened. I have a macro that runs the following save as code

Sub Macro2()
    Dim newFile As String, fName As String
    
    fName = Range("M1").Value
    newFile = Format$(Date + 1, "mm-dd-yyyy") & fName
     ChDir _
    "H:\Spreadsheets\Unit Reports\"
    ActiveWorkbook.SaveAs Filename:=newFile
    
    
End Sub

This saves the workbook just like I want. The issue is on the "new" workbook I do not want the form to open, on open (it is not needed) I tried this code at the end of my save as event trying to disable the On Open Event. Did not work.

any ideas?

Application.EnableEvents = False