Pega este codigo en VBA y ejecuta. El resultado es el UUID del archivo.
 
Sub CATMain()
     Dim sText As String
       Read_UUID = ""
   sPath = InputBox("Path")
     Open sPath For Binary Access Read As #1
    sText = Space(LOF(1))
    Get #1, , sText
    Close #1
       lStart = InStr(sText, HEADER)
       If lStart > 0 Then   
        For n = 1 To 16
            Read_UUID = Read_UUID & Right("0" & Hex(Asc(Mid(sText, lStart + Len(HEADER) - 1 + n, 1))), 2)
        Next n 
        Read_UUID = Left(Read_UUID, 8) & "-" & Mid(Read_UUID, 9, 4) & "-" & Mid(Read_UUID, 13, 4) & "-" & Mid(Read_UUID, 17, 4) & "-" & Right(Read_UUID, 12) 
    Else
        Read_UUID = "NOT FOUND"   
    End If
    MsgBox (Read_UUID)
End Sub