I went through few documents and found that sumproduct() works in XC 2008.
I’m using XC 2008 SP 4 (Version - 5.4.0.0 and build number - 12,4,0,1166), but when I generate the XLF using sumproduct(), I don’t see any values in the cell. It returns #Value error.
sum product does work in its simplist form. You are combining two arrays however. This is too complex for a SWF file.
The solution to your problem is to do complex array calcuations at the Database level.
Alternatively, you can break down your complex functions into simple steps across different worksheets, where worksheet B uses the results of worksheet B. This will force separate calculations. SumProduct can broken down into simpler functions easily. Doing a bunch of work in Excel is also misusing this software, however.