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I want to be able to sum together the values of an entire row except for the first 2 cells. So something like this:

=sum(A3:A*infinity*)

How do I do this?

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You may need to edit your question or your example. You wish to reference an entire row but your example sums a column of data. –  Ellesa May 21 '11 at 9:54

4 Answers 4

up vote 6 down vote accepted

Something similar has been asked before and I'll repeat this answer: just put:

=sum(a3:a1048576)

because that's the max number of cells per column / row in Office 2007 and 2010. (65536 is max for before 2007.) (For columns, the max column name is XFD in 2007 and 2010, and IV before 2007.)

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I guess this is the only way to do it if the formula itself is in the same row. Thanks –  Eddy Aug 1 '11 at 16:58

I thought you could simply do the following: =SUM(A3:A)

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I remember doing this in the and it worked in a past job I had, but in my copy of Office 2007 right now that notation doesn't work in formulas, or if you type it into the Name Box. –  p0lar_bear May 2 at 16:01
    
this is actually the correct answer –  voxobscuro Sep 20 at 13:42

To sum an entire row:

=sum(1:1)

Replace 1 with your starting row number and then use the autofill handle accordingly. If you drag the formula down, it'll change to "=sum(2:2)" and so on..

To sum the entire row, except the first 2 columns:

=sum(1:1)-sum($a1:$b1)

This'll help you cut down on the file size.

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Add up everything and then take away the ones you don't want to include:

=SUM(A:A)-A1-A2

Edit:

As josmh has pointed out, the formula above will fail with an error if A1 or A2 are non numeric - but the following will work:

=SUM(A:A)-SUM(A1,A2)  

or

=SUM(A:A)-SUM(A1:A2)  

or (for a bit of fun!)

=SUM(A:A,(-1*(SUM(A1))),(-1*SUM((A2))))

These work because the SUM function ignores non-numeric fields

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1  
This will not work if A1 or A2 are headers that hold text such as "Number of People" or "Price". Subtracting "Price" from a number causes a formula error. –  joseph644 May 17 '11 at 22:22
    
Just wrap in and "IFERROR" then –  James May 17 '11 at 22:27
    
Thanks @josmh - good point. Revised formulas added. –  Linker3000 May 17 '11 at 22:41
    
Sorry if it was possibly rude how the comment came up. Upvoted now! –  joseph644 May 18 '11 at 14:39
    
Will this work if the cell with the formula is on the same row, say in A1? –  Eddy Jun 1 '11 at 13:06

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