I am getting thishad the same problem, but Name Manager does not reveal all the bizillion names embedded in the sheet. I do not know where they came from. I used Defined Names meticulously and keep the manager clean. No names with errors show up, but when I go to make a copy, I get the dialogue box about 50+ times. Ugh!!!
HERE IS THE ANSWER: somehowSomehow I got a bunch of HIDDEN NAMEShidden names in the worksheet.
Here is how to UN-HIDE THEM, run this Excel VBA code:unhide them
Sub ShowNames()
Dim nmName As Name
For Each nmName In ActiveWorkbook.Names
nmName.Visible = True
Next nmName
End Sub
Sub ShowNames()
Dim nmName As Name
For Each nmName In ActiveWorkbook.Names
nmName.Visible = True
Next nmName
End Sub
Now, Iyou can see again all those stupid names in Name Manager and Shift-Select and DELETE!!!! Ha!delete them.