Is there is an interface to deal with as XML file?

Is there is an interface to deal with as XML file?

I made an application that depends on the data taken form an XML file, and
if the user want to update something in that application he have to change
the data contained in that xml file, but for sure i can't ask the user to
open the XML file and change it himself, so is there is a way or an
interface that can be used to edit this XML file or something that helps
me build that interface?
HINT: the changes that have to be made to the xml file to update the
application is a slight changes like adding or removing a node.