1. Select the range of cells where you want to find the numbers greater than 0.50.
2. Press Ctrl + H to open the Find/Replace dialog box.
3. In the Find what field, enter "0.50" (without the quotes). This tells Excel to find all values greater than 0.50.
4. Leave the Replace with field blank.
5. Click on the Format button at the bottom of the dialog box and select the format you want to apply to the cells that meet the criteria. For example, you can choose to highlight the cells in yellow or bold the text.
6. Click on the Find All button to see a list of all the cells that meet the criteria.
7. If you're satisfied with the results, click on the Replace All button to apply the format to all the cells that meet the criteria.

Note that the Find/Replace feature in Excel only recognizes text, not formulas. However, you can use operators like , <, =, etc. to search for values that meet certain criteria.