To pull data from another sheet in Excel, use cell references, use the VLOOKUP function, or use the INDEX and MATCH functions.

How to populate from another sheet in Excel You can populate a dropdown with a list on another sheet by referencing the cells, but the resulting dropdown won’t be dynamic, even when the list is ...

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.