Yes, absolutely! Conditional formatting can be used to format entire rows based on a value in a single cell. Here's how:

1. Select the data range: Choose the range of cells that includes the row you want to format conditionally and the cell containing the value that will determine the formatting.

2. Go to Conditional Formatting: Navigate to the "Home" tab on the Excel ribbon. In the "Styles" group, click on "Conditional Formatting."

3. New Rule: A dropdown menu will appear. Select "New Rule" to open the "New Formatting Rule" window.

4. "Format values where this formula is true" option: Under "Select a Rule Type," choose the option "Use a formula to determine which cells to format."

5. Enter the formula: In the "Format values where this formula is true" box, enter the formula that will determine which rows to format. Here's the basic structure:

`=($TargetCell = "YourValue")`

- Replace "$TargetCell" with the actual cell reference containing the value that will control the formatting (e.g., B2, C5).
- Replace "YourValue" with the specific value you want to match for applying the formatting.

6. Format the row: Click the "Format" button to choose the formatting options you want to apply to the entire row when the formula condition is met. You can change font styles, cell fill colors, borders, etc.

7. Click OK: Once you've set the formula and formatting, click "OK" to close the "New Formatting Rule" window.

Now, any row where the value in the target cell matches "YourValue" will be formatted according to your chosen styles.

Tips:

* You can use comparison operators like "<", ">", "<>" (not equal) within the formula for more complex conditions.
* Conditional formatting allows for referencing cells in other sheets as well. Just adjust the cell reference accordingly in the formula.