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.

Unlock the full potential of Excel's SUM function with advanced techniques for data analysis, conditional counting, and more.

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

There's more to Excel's Subtotal feature than you might realize. You can add multiple subtotaling functions to the same row, and you can add multiple rows.