Accessing XML File

Hi all,

I export a Web Template's Data Provider into an XML-File by using

and redirect it to a custom controller. But I don't know how to access the XML-file from ABAP. I've only got a url-parameter ?XML_ID=53BSGJL8AUWI6N6DV75MIYBGW...

Is there a function that delivers the file's path or something like that because I want to parse this file and process its data in ABAP?

Thanks in advance!

Best regards,

Dominik