View XML

You have the ability to open XML and edit XML files instantly with this free extension. Also after your view and edit XML you can save that directly onto your desktop or your Google Drive.
The features of XML Viewer:
* Collapsable elements: Alt+click to expand/collapse all descendant elements. Double-click on opening or closing tag to collapse it.

* Outline for better document overview.

* Search by name or XPath. By default uses simple search mode which looks for a partial match in element‘s or attribute’s name; use special symbols like '/' or '[' to search by XPath.

* Quick XPath mode: hold down Command (Mac) or Ctrl (PC) key while moving mouse cursor over element‘s or attribute’s name to enter Quick XPath mode. Use Shift key to cycle through available XPath variants and then drag’n’drop element under cursor into text editor, click on element will copy XPath to clipboard.

Really powerful XML viewer will in your Google Chrome. I think that is what you are looking for for XML file. Even if you don't use that often, it won't be superfluous. View XML file with our extension. So, I suppose that you will not regret of using XML viewer"