Sub PunctuationToDoubleOpenGuillemet()
' Paul Beverley - Version 25.03.23
' Changes next quote mark to double open guillemet

trackIt = True

searchChars = Chr(34) & Chr(39) & ChrW(8216) _
       & ChrW(8222) & ChrW(8249) & ChrW(8250) _
       & ChrW(8218) & ChrW(139) & ChrW(96)

newChar = ChrW(171)

myTrack = ActiveDocument.TrackRevisions
If trackIt = False Then ActiveDocument.TrackRevisions = False
Set rng = Selection.Range.Duplicate

For i = 1 To 1000
  rng.MoveEnd , 1
  If InStr(searchChars, Right(rng, 1)) > 0 Then
    rng.Start = rng.End - 1
    gotChar = True
    Exit For
  End If
  DoEvents
Next i
If gotChar = False Then
  Beep
Else
  rng.Delete
  rng.Select
  Selection.TypeText Text:=newChar
End If
ActiveDocument.TrackRevisions = myTrack
End Sub