To reference cells from other sheets within the same workbook in Excel, you can use a simple syntax that combines the sheet name and cell address:

SheetName!CellAddress

Here's a breakdown of the components:

* SheetName: This is the name of the worksheet containing the cell you want to reference.
* Exclamation mark (!): This symbol acts as a separator between the sheet name and the cell address.
* CellAddress: This is the standard cell reference (e.g., A1, B5, C10) of the cell you want to use.

Examples:

* To reference cell B3 on a sheet named "Data" in the current formula, you would use: `Data!B3`
* To reference the entire range A1:A10 on a sheet named "Chart" for a chart, you would use: `Chart!A1:A10`

Tips:

* Sheet names can contain spaces or special characters, but you need to enclose them in single quotes (') for proper reference. (e.g., 'Sales Report'!A1)
* By default, Excel uses relative references, which means the formula adjusts based on where it's copied. For example, if you copy `Data!B3` from cell C2 to D3, it will automatically change to `Data!C3` to maintain the relative position.
* You can use absolute references by pressing F4 after entering the cell address to lock onto the specific sheet and cell location (e.g., `$Data!$B$3`). This is useful when you want the reference to remain static regardless of where the formula is copied.

Referencing cells from other sheets allows you to consolidate data from different parts of your workbook into a single formula or analysis. This promotes efficiency and reduces the need for manual data entry across multiple sheets.