SUMIF and SUMIFS function is used to add data or seperate data in a table or column. We dicuss the difference and how to use them.

To calculate the sum of squares using Microsoft Excel, you need to input a specific formula into the formula bar of the cell you're working with.

You can sum cells across multiple sheets in Excel. This article presents steps for Adding single-cell values or Adding values in the range of cells.

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 ...

The SUMIF Function in Excel There are also more complicated functions in Excel that can sum or count values when certain criteria are met.