One way
In say, B2:
=SUMPRODUCT(--(MOD(ROW(A2:A100),8)=2),A2:A100)
Adapt the range to suit
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Max
Singapore
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xdemechanik
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"bbibib" wrote in message
...
I have a worksheet with 400 tables in, all identical, and I want to
add up A2, A10 A18 etc.
Is there a way I can do this in a formula to save going to every 8th
cell manually to add up?
Thanks