Macro to Delete #REF! Defined Name Errors in a Workbook

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1. Create a new workbook with at least two sheets.
2. Select cell A1 in Sheet2.
3. On the Insert menu, point to Name, and then click Define.
4. In the Define Name dialog box, type myname in the Names In Workbook box, and then click OK.
   
   This creates a defined name that refers to cell A1 in Sheet2.
5. Delete Sheet2.
   
   This makes the defined name "myname" refer to =#REF!$A$1.
6. Type the following code in a new module sheet.

         ' This procedure deletes every named range in which the RefersTo
         ' argument contains #REF!, where #REF! begins at the second character
         ' and ends at the fifth.
   
         Sub Delete_Every_Named_Range_With_A_Reference_Error()
            Dim nm As Object
            Dim mystr As String
   
            ' Loops through each name in the active workbook.
            For Each nm In ActiveWorkbook.Names
   
               ' Check for #REF! in the defined name reference.
               If InStr(1, nm.RefersTo, "#REF!") Then
   
                  ' Delete the defined name if it is a match.
                  nm.Delete
   
               End If
            Next
         End Sub
   						

7. Run the macro.
   The defined name "myname" is deleted from the workbook.