You can do it with code like the following:
With ThisWorkbook.VBProject.VBComponents("Module1").CodeModule
.DeleteLines .ProcStartLine("MacroName", 0), _
.ProcCountLines("MacroName", 0)
End With
If you are using Excel 2002 or 2003, you will need to manually tell Excel to
trust macro modifications of vba code. I believe it is found via Tools,
Macros. Set back when done.
Bob Flanagan
Macro Systems
http://www.add-ins.com
Productivity add-ins and downloadable books on VB macros for Excel