There are instructions here for deleting the modules:

http://www.contextures.com/xlfaqMac.html#NoMacros

carol49 wrote:
I have a worksheet that i created and have never created a macro in it. (I
have never taken the time to learn how.) Yet, there are two macros in the
workbook--probably created during major system problems compounded by inept
tech support. When i select tools-macros and try to delete the macros, the
delete key is not enabled. The macros, which are in a file named Billing, are
named Billing.xls!Module1. Insert and Billing.xls!Module2.OpenFile. When
opening this file, i cannot select other files to open at the same time--they
just dont open. How do i get rid of these macros?
carol


--
Debra Dalgleish
Contextures
http://www.contextures.com/tiptech.html