hey, so ext:asp basically looks for files with the .asp extension. what that *exposes* really depends on how the server is set up and if there are misconfigurations.
usually, you might find stuff like:
* old asp source code that wasn't properly removed
* sometimes even config files with db connection strings or hardcoded creds (bad practice but it happens lol)
* internal server paths or app logic.
it's kinda like looking under the hood of older web apps tbh. not always super exciting but you can find interesting things sometimes.