The Exclude robots functionality in Sitecore Analytics allows you to add certain IP addresses to the exclude list using the Sitecore.Analytics.ExcludeRobots.config file. Requests from these addresses are not tracked by Sitecore Analytics.
However, when the Analytics.ForwardedRequestHttpHeader setting is enabled, for example, when using proxy servers or load balancers, incoming requests might not be properly filtered according to the IP exclude list.