exporting from epi is easy, but through the built-in functionality that requires admin rights. This does not have to be a manual process. Write a scheduled job in EPiServer and done. Another method is to create a mirroring setting extracting data via xslt. However if your question is to do this without epi admin access, would change the challenge a bit. If you have access to the db you can do a sql script extracting the desired data.
