Sum of row n through last row

Question

I want to create a TOTAL row at the top of my spreadsheet. In this row, each cell should be the SUM of the values in the column below the TOTAL row.

So for example, i

Answer 1

If you want something that just works in Google Spreadsheets (as the title suggests), you can use open-ended ranges:

=SUM(A2:A)

In Excel, you can specify the maximum rows for that version; for example, for 2007 and 2010:

=SUM(A2:A1048576)

This will work in Google Spreadsheets as well, and is beyond the current theoretical row limit in GSheets (400000)*.

Edit: *The quoted limit of the new version of Sheets is actually now 2 million cells.