Excel Dictionary on MSN

Summing category values with Excel SUMIF

A simple guide to using the SUMIF function to total values based on specific categories. It shows how to organize data and ...
Ars Technica

Using Excel's SUMIF (or SUMIFS) with a column of criteria

I keep running into situations in Excel where I want to calculate a conditional sum, but my criterion is something along the lines of "Include cell B1 if cell A1 is a number, likewise B2 and A2, B3 ...
Hosted on MSN

I ditched SUMIF for SUMIFS in Excel—and my spreadsheets finally work the way I need them to

Excel's SUMIF and SUMIFS functions both let you add up values that match criteria you specify. The problem is that many people treat them as separate tools: SUMIF for one condition, SUMIFS for ...