A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Run the following macro:
Sub CorrectHeaders()
Dim wsh As Worksheet
Dim r As Long
Dim m As Long
Dim rng As Range
Application.ScreenUpdating = False
Set rng = ActiveWorkbook.Names("Headers").RefersToRange
Set wsh = ActiveSheet ' or Worksheets("List") or ...
m = wsh.Range("A1").End(xlDown).Row
For r = 2 To m
rng.Replace What:=wsh.Range("A" & r).Value, Replacement:=wsh.Range("B" & r).Value, LookAt:=xlWhole
Next r
Application.ScreenUpdating = True
End Sub
This version will only replace entire cell contents. If you want to replace part of cell contents, change xlWhole to xlPart.