Open an existing Excel spreadsheet, navigate to a specific cell containing numerical data, and perform a simple mathematical operation (e.g., addition) on the adjacent cells.

Here's how to perform the task in Excel: Step 1: Open an existing Excel spreadsheet. • Locate the Excel file on your computer and double-click it to open. Step 2: Navigate to a specific cell containing numerical data. • Once the spreadsheet is open, click on any cell that contains a number. For example, click on cell B2. Step 3: Perform a simple mathematical operation (e.g., addition) on the adjacent cells. • Click on an empty cell where you want the result to appear, for example, cell C2. • Type an equals sign to start a formula: =. • Click on the first adjacent cell you want to include in the operation (e.g., B2), type the + sign, then click on the second adjacent cell (e.g., B3). • The formula in cell C2 would look like =B2+B3. • Press Enter to see the result of the addition. That's 2 down. 3 left today — send the next one.