SUMIFS function in Google Spreadsheet

Question

I\'m trying to have a similar function to SUMIFS (like SUMIF but with more than a single criterion) in a Google Spreadshe

Answer 1

As of December, 2013, Google Sheets now has a SUMIFS function, as mentioned in this blog post and documented here.

Note that old spreadsheets are not converted to the new version, though you can try copy-pasting the data into a new workbook.