Best in what context?
There are millions of examples out there, but it depends upon the subject
matter. For instance, Debra Dalgleish has great examples for pivot tables
and data validation at
www.contextures.com, John Walkenbach has many tips
on many subjects at
www.j-walk.com/ss, Chip Pearson has some nice date and
array formulae at
www.cpearson.com, etc., etc. There is so much out there,
but they may not be specific to your need, so it is probably best to build
up your own example set.
--
HTH
RP
(remove nothere from the email address if mailing direct)