MS XML Notepad 2007<BR><BR>edit: just to clarify, this is an xml file editor that has a tree view pane on the left.You can right click and expand the whole tree, or leave it collapsed. ••• ...

Oxygen XML editor adds graphical tree capabilities. By Dennis Sellers. Macworld APR 1, 2003 4:00 pm PST. syncRO Soft Ltd. has released version 2.0 of their oXygen XML Editor.