To fix an Excel spreadsheet not adding up correctly, check the SUM function's syntax and make sure there aren't any text format cells in the sheet.

We show you how to use the SUM formula in Excel, how to use the AutoSum feature and how simple additions with the plus sign work. Microsoft Excel is the most widely-used spreadsheet program ...

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.

It is possible to make the Sum Excel formula reference another sheet, or multiple sheets, and add up a range of cells across those sheets.

Want to know how to use VLOOKUP and SUM across multiple sheets in Excel? We've got you covered with two different methods.

How to Sum Across Worksheets in Microsoft Excel. Using multiple sheets in the same Excel workbook helps organize data into distinct categories. For example, you might have sales data for each of ...

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