Yes, you can absolutely use cell references from other sheets in the same workbook within Excel formulas. Here's how:

Syntax:

To reference a cell from another sheet, you simply prefix the sheet name followed by an exclamation mark (!) before the cell address.

For example:

- `Sheet2!A1` refers to cell A1 on Sheet2.
- `'Data'!B3:C10` references the range B3 to C10 on the sheet named "Data" (use single quotes if the sheet name contains spaces or special characters).

Benefits:

Using cell references from other sheets offers several advantages:

- Consolidated Data Analysis: You can pull data from different sheets into a single formula, allowing for comprehensive calculations and analysis.
- Reduced Redundancy: Eliminate the need to duplicate data across sheets by referencing it from its source location.
- Dynamic Updates: When the source data changes, the formulas referencing it will automatically update, ensuring accuracy throughout your workbook.

Examples:

Here are some common examples of using cell references from other sheets:

- SUM formula across sheets: `=SUM(Sheet1!A1:A10, Sheet2!B1:B5)` calculates the total of cells A1:A10 on Sheet1 and B1:B5 on Sheet2.
- Average lookup: `='Inventory'!C2` retrieves the value from cell C2 on the "Inventory" sheet.
- Conditional formatting based on another sheet: You can set up conditional formatting rules that reference cells on another sheet to highlight data based on specific criteria.

Tips:

- Be mindful of sheet names, especially if they contain spaces or special characters. Use single quotes to enclose the sheet name for accurate reference.
- When referencing a large range, consider using the `INDIRECT` function for dynamic references based on cell values.
- Absolute vs. Relative References: By default, Excel uses relative references, which adjust based on the formula's location. You can use absolute references (e.g., `$Sheet1!$A$1`) to lock onto a specific cell location regardless of copying.

Using cell references from other sheets is a powerful technique for working with complex data in Excel. It allows you to create dynamic and interconnected workbooks for efficient data analysis.