A custom URL category for CSV files is entered into a URL filtering profile for the purposes of monitoring the downloading of a CSV file from a server. However, when the CSV file is accessed and downloaded, a URL filtering log entry is not generated.
The following screenshot displays an example of custom URL category for a CSV file:
The custom URL category is entered into a URL Filtering Profile:
The session information from the Palo Alto Networks firewall indicate that the custom URL category has been detected: