With BizTalk you sometimes have to open up large XML files either as input, or after they have been parsed by a flat file schema, or as the output from a map. Opening it with Visual Studio or other tools is very slow and sometimes to makes them crash.
A handy tool that Mark Brimble was told about when he got frustrated with these tools is firstobject XML Editor or foxe for short. It works as advertised and is going to be a handy tool in our toolbox.
Firstobject’s free XML editor for Windows is called foxe. It loads big files (multi-megabyte) fast and lets you format XML and edit HTML and any loosely formed XML or other markup. The tree view is editable and customizable for useful navigation.