Sum Of A Row of Cells In Multiple Columns Based On Criteria And Column Index

[Excel Fox]

Why do you need to Vlookup at all? You are summing it from the same row anyway, although from different columns. Your requirement isn't clear. But I guess this is what you wanted

L4=SUMPRODUCT((--ISNUMBER(MATCH(VALUE($C$3:$J$3),D$12:D$17,0)))*(--($C4:$J4))) and copy down and across. if this is not what you wanted, can you clarify?

[excel_learner]

sorry for that, in fact i have a formula for results but i have to insert vlookup for each code and sum as can be seen in column L, i want it to be simple formula whereby the formula checks the code in range from column given e.g D11 and D12 and match with 1st row and sum the values. I hope it is clear now.
Thanks

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