Hi
for a non macro solution try the following formula in C12 (and copy it
down afterwards)
=IF(MOD(ROW(),12)=0,SUM(OFFSET(B12,0,0,-12)),"")


--
Regards
Frank Kabel
Frankfurt, Germany


Jerry Derfler wrote:
In Excel I have months and years in column A. (several hundred rows)
In Column B I have data.
I want to sum 12months of data in every 12th cell in Column C.
My forumuls is =sum(B1.B12)
How can I copy this formula down column C so I only have results
showing in every 12th cell and all the 11 cells between each formula
is blank.

I prefer a non-macro solution.

Thanks in advance

Jerry




a
a of figures in col. B. I