Absolutely! Conditional formatting is a powerful tool in Excel that allows you to format cells based on various conditions, including comparisons to an average. Here's how you can achieve this:

1. Select the cells you want to format: Choose the range of cells where you want to highlight values based on the average.

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 create a new formatting rule.

4. "Format values where" option: In the "New Formatting Rule" window, choose the option "Format values where this formula is true."

5. Enter the formula: In the box below "Format values where this formula is true," enter the following formula:

```excel
=A1 > AVERAGE($A$1:$A$10) // Replace A1:A10 with your actual data range
```

Explanation of the formula:

- `A1` represents the cell you're currently in (the formula will adjust automatically when copied to other cells).
- `AVERAGE($A$1:$A$10)` calculates the average of the entire data range (adjust the cell range to match your actual data).
- `>` is the greater than operator. You can use other operators like "<" (less than), "=" (equal to) for different comparisons.

6. Format Cells: Once you've entered the formula, click on the "Format" button. This will open a formatting window where you can choose how you want to highlight cells that meet the condition (e.g., font color, fill color, etc.).

7. Click OK: After selecting your desired formatting, click "OK" on both the "Format Cells" and "New Formatting Rule" windows.

Now, your selected cells will be formatted based on their values compared to the average. Cells with values greater than the average will be formatted according to your chosen style. You can adjust the formula and formatting options to create different rules for various comparisons.

Tips:

* Use absolute cell references ($A$1:$A$10) for the average calculation to ensure the reference stays fixed when copying the formula to other cells.
* You can create multiple conditional formatting rules for the same cell range to highlight different value ranges compared to the average.