Sub ParasBlankToTabSelection()
Application.ScreenUpdating = False
With ActiveDocument.Range.Find
  .ClearFormatting
  .Replacement.ClearFormatting
  .Text = "^13{2,}"
  .Replacement.Text = "^p^t"
  .Forward = True
  .Wrap = wdFindContinue
  .Format = False
  .MatchWildcards = True
  .Execute Replace:=wdReplaceAll
End With
Application.ScreenUpdating = True
End Sub