We're using a quite powerful machine: quad core extreme CPU, 4gb of Ram, XP
Pro.

However, we're dealing with array formulas which refer to a worsheet of
205,000 rows * 23 columns (ever-increasing).

Excel doesn't operate properly and on manual calculation, it shows the
message:
"Excel ran out of resources".

Is there another way to calculate such large an amount of information?
Another program that is?