XMLMarker is an XML Editor that uses a synchronized table-tree-and-text display to show you both the hierarchal and the tabular nature of your XML data.It automatically produces a tabular display of any selected tag by collecting repeating attribute and tag names and then arranging them into columns. The result is a clutter-free and informative tabular display.freeware. a must-have when using vvvv and pretty easy to use. Very useful e.g. for editing wrong paths in patches?.
The free version (1.1) can not deal with unicode.
NotePad++ is a free source code editor (and Notepad replacement), which supports several programming languages, running under the MS Windows environment.