Where Extra information fields got stored into candidate profile once they submitted the application

Summary:

Where Extra information fields got stored into candidate profile once they submitted the application ?

Content (required):

Hi Team,

While filling the application as a external candidate, they are adding the extra information like Referred By etc... we need to know where those information got stored into candidate profile once they submitted the application.

Version (include the version you are using, if applicable):

23A

Code Snippet (add any code snippets that support your topic, if applicable):