This is not an html plugin, it is a VB/VBA function that can not have preview here, to see it working, you need to add it to your VBA project and run the function

If you don't know what I am talking about, then this maybe not for you

' Searches for a name in the open workbook
' Can also be used as User-Defined-Function
Function FindName(Name, Optional FileName = "This") As Boolean
FindName = False
If FileName = "This" Then FileName = ThisWorkbook.Name
If FindFile(FileName) Then
For i = 1 To Workbooks(FileName).Names.Count
If Workbooks(FileName).Names(i).Name = Name Then FindName = True: Exit For
Next i
End If
End Function