No it doesn't, you can however use other functions

=SUMPRODUCT(--(MOD(ROW(A1:A100)-ROW(A1),2)=0),A1:A100)


will sum cell A1, A3, A5 etc


=SUMPRODUCT(--(MOD(ROW(A1:A100)-ROW(A1),3)=0),A1:A100)

will sum

A1, A4, A7 etc so every third row


There are many nice function in Lotus that are better than in Excel




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Regards,


Peo Sjoblom

"marke54805" wrote in message
...
I have an old lotus 123 spreadsheet (a budget) that used the @nsum
function.
It allowed me to sum every third or forth column. The text below shows
the
syntax. My question... does excel have a function like this?

Adds every nth value in list, starting at offset.
Syntax
@NSUM returns the sum of (offset), (offset + n), (offset + 2n), (offset +
3n), ... in list. @NSUM(0;1;list) returns the same result as @SUM(list).
Example
@NSUM(1;3;B5..B15) returns the sum of the values in B6, B9, B12 and B15.

Thanks in advance,

mh