Hi,
I have a few UDFs that should only be callable from VBA
(they are meaningless as spreadsheet functions). Does
anybody know how to make a UDF invisible to the
spreadsheet, but visible to any/all VBA modules? I don't
think the "Private" designation is appropriate because it
makes the UDF invisible to all other VBA modules.

An example of this would be the MsgBox function, which is
callable from any VBA module, but not callable directly
from a spreadsheet.

Thanks in advance for any help.
Ryan