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.

Google Sheets may be younger than its Microsoft-made contemporary, but it can merge spreadsheet cells just as well and do even better in some specific cases. Open the desktop or web Google Sheets app.

Learn how to use the VLOOKUP formula to compare a maximum of two columns to have common values returned or to locate missing data.