You can also enter your formula via a name and hide that name, so, for
example, if you had a formula:
=VLOOKUP(A1,$B$2:$C$100,2,FALSE), for example, you could enter a name such
as "MyFormula1" which is defined as =VLOOKUP(A1,$B$2:$C$100,2,FALSE), and
then you can enter =MyFormula1 in the cell. Then using a 1-liner in the
immediate window of the VBE, you can enter:
thisworkbook.Names("Myformula1").Visible=False
then it won't show up in the Name manager/defined name list