Why might one use formulas in criteria for saved searches?

Using formulas in criteria for saved searches is particularly valuable because it allows users to filter rows based on the results of calculations. This functionality enables the creation of more advanced and dynamic criteria that can evaluate data on the fly. For instance, if a user wants to identify transactions where the total amount exceeds a certain threshold, they could use a formula to calculate the total and then filter based on that outcome. This capability ensures that only the relevant data that meets specific calculated conditions is included in the search results, leading to more targeted and insightful analyses.

The other options do not accurately represent the purpose of using formulas in criteria for saved searches. Creating additional fields for visual representation focuses more on enhancing the display of data rather than filtering it. Similarly, listing all data without conditions does not involve the use of formulas at all, while enhancing appearance pertains to presentation rather than data filtering.