Hasn't CHOOSE always been limited to 29? I don't think that there has been
any recent relevant update. If you Google you will find articles from a
long while ago which refer to the 29 limit (and of course Excel help says
that 29 is the limit).
As for the way round your proble, well, you could test for large or small
values in D3 and go to one or other of 2 separate CHOOSE functions, but why
not just use:
=SUM(OFFSET(U7,0,0,1,$D$3)) ?
--
David Biddulph

"dkcpa" wrote in message
...
I have previously used the "choose" function for sum functions that would
sum
a data range for a month-to-date display. Recently we have found that one
of
the updates we have ran has limited the number of agruments that the
choose
function supports has been limited to 28 arguments. The problem I face is
29, 30, and 31 day months become a problem. We have not been able to
uninstall the update (assuming that this change was made with a Service
Pack
update). Does anybody have suggestions on how to accomplish the same
result
with a different formula?

A couple of items to help try and explain.

On the 14th day I would like to see a month to date total from the 1st to
the 14th.
On the 30th day I would like to see a month to date total from the 1st to
the 30th.

These would be simple to fix with a sum function, however, in the same
sheet
I also preload daily data from the prior year, so the sum function would
always show the total from the 1st to the end of the month.

I also have a date key that we use to drive which day's data is shown so
that it is possible for me to quickly change the data that is displayed to
any day I select. this made it possible for me to see data through the
14th
of the month, even though data had been entered say to the 21st or beyond.

If it is any help, here is an example of how the formula was written prior
to the limitation of the number of arguments in the choose function
(forgive
the length):

=CHOOSE(($D$3)+1,0,SUM(U7:U7),SUM(U7:V7),SUM(U7:W7 ),SUM(U7:X7),SUM(U7:Y7),SUM(U7:Z7),SUM(U7:AA7),SUM (U7:AB7),SUM(U7:AC7),SUM(U7:AD7),SUM(U7:AE7),SUM(U 7:AF7),SUM(U7:AG7),SUM(U7:AH7),SUM(U7:AI7),SUM(U7: AJ7),SUM(U7:AK7),SUM(U7:AL7),SUM(U7:AM7),SUM(U7:AN 7),SUM(U7:AO7),SUM(U7:AP7),SUM(U7:AQ7),SUM(U7:AR7) ,SUM(U7:AS7),SUM(U7:AT7),SUM(U7:AU7),SUM(U7:AV7),S UM(U7:AW7),SUM(U7:AX7),SUM(U7:AY7))

The reference to $D$3 is to the date key that displays which number of day
we are in for the month (or which day I would like to see totals through).

Thanks