Assuming the numbers are superscripted text (not footnote/endnote references and the like), you could use a macro like:
Code:
Sub Demo()
Application.ScreenUpdating = False
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 = CLng(.Text + 1)
.Collapse wdCollapseEnd
.Find.Execute
Loop
End With
Application.ScreenUpdating = True
End Sub
For PC macro installation & usage instructions, see:
http://www.gmayor.com/installing_macro.htm
For Mac macro installation & usage instructions, see:
http://word.mvps.org/Mac/InstallMacro.html