The purpose of Excel SUMSQ function is to return the sum of the square of the arguments. We explain the syntax, formula & how to use it.

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.

This month’s column shows how to use the remarkably versatile AGGREGATE function in Excel.

Google Sheets offers many of the same features as Microsoft Excel. The SUMIF function allows you to quickly sum rows that meet certain criteria.

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.

SUM is the spreadsheet equivalent of an open invite: it welcomes everything into the total, whether it belongs there or not.

Excel’s BYCOL() and BYROW() functions evaluate data across columns and rows, returning an array result set allowing you to bypass a lot of work.