Free text/XML editor where I can navigate between child parent nodes in XML?

I have a huge xml file, about 300M in size. I am looking for a free editor, where whe开发者_如何学Cn the cursor is on an element, I can quickly jump to its parent node. Visual Studio 2010 crashes when reading such a big file. Naturally the editor should be able to read such a file. I just tried an editor called PrimalXML and got an out of memory error. I couldn't find a way to do this in NotePad++. I have XML Tools plugin installed.

XML Marker.

in Notepad++, use Alt-1, Alt-2, Alt-3, Alt-4 etc to navigate across levels