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.

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.

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.

When working with spreadsheets in Microsoft Excel, you might find yourself needing to add up business data from cells across multiple spreadsheets. It is possible to make the Sum Excel formula ...

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.

But if you only do that once a year, you’ll probably have to research how to use the VLOOKUP function in Excel. For the third most used function in Excel (after SUM and AVERAGE), VLOOKUP is complex.