Hi all
Thanks for help in the past & future

I have a columm of numbers to be added
There are about 1200 of these running say
from cells C1 down to C1200

I normally use the =SUM(C1:C1200) function
but often I only want to total part of these - say from
cells 250 to 650

I usually manually change the function each time - I am wondering
if there is some function I could use
where I could input say into cells B1 and B2 the numbers of the range of
cells
in the C columm I want to be totalled

Many Thanks

Alex