For every nth (as 10th) ROW, see:
http://www.ozgrid.com/Excel/sum-every-2nd-nth-cell.htm

And covering both nth Row and nth Column is
http://www.mcgimpsey.com/excel/formu...meverynth.html


"kcarlson" wrote:

how do i write a formula to add cell contents that are seperated by ten other
cells?