I am missing something fundamental in creating functions in Excel. Does
somebody have step by step, comprehensive instructions?

At this point, I somehow have a simple function that is recognized and
returns a 0 value, but does not appear in the VB Editor or in the list of
functions. Two other simple functions - same as the first with slightly
different names - appear in the list of functions and in the VB Editor, but
are not recognized when I insert the names into the corresponding spread
sheet.

Help would be appreciated,

Jim