How to Do the Sum of an Indefinite Series in Excel. The Microsoft Excel program includes a variety of mathematical formulas that you can apply to any cell in a spreadsheet.

You can use the Sum function in Microsoft Office Excel to sum columns of data, whether your data is in an Excel table or is simply a range in a column of your worksheet.

Got numbers in a spreadsheet you want a quick calculation on without the hassle of going to a new cell and creating a SUM formula for the job? Excel offers a quicker way.

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.

Mac: The "Sum" function in spreadsheets is great, but if you're not the type to do all your list-making in Excel, coder Brett Terpstra built an OS X System Service that allows you to total up any ...