Try:
Code:
Sub Demo()
Application.ScreenUpdating = False
With ActiveDocument.Range
With .Find
.ClearFormatting
.Replacement.ClearFormatting
.Text = "^13[!A-Za-z0-9~] "
.Replacement.Text = "^p"
.Forward = True
.Wrap = wdFindStop
.Format = False
.MatchWildcards = True
.Execute Replace:=wdReplaceAll
End With
End With
Application.ScreenUpdating = True
End Sub