You could use:
Code:
Sub Demo()
Application.ScreenUpdating = False
Dim i As Long
i = 0
With ActiveDocument.Range
With .Find
.ClearFormatting
.Replacement.ClearFormatting
.Text = "[0-9]@>"
.Font.Superscript = True
.Replacement.Text = ""
.Format = True
.Forward = True
.Wrap = wdFindStop
.MatchWildcards = True
.Execute
End With
Do While .Find.Found
.Text = i
i = i + 1
.Collapse wdCollapseEnd
.Find.Execute
Loop
End With
Application.ScreenUpdating = True
End Sub
Where I have 'i = 0', simply replace the 0 with whatever you want the starting # to be.