Sorry if slightly off-topic, but I have asked / researched many other
places already,  maybe someone here can help?

MSIE has a useful (for users applications) feature of performing XSLT
transformations if a stylesheet is specified in the XML file, e.g., within
the data file:

<?xml version="1.0"?>
<?xml-stylesheet type='text/xsl' href='test.xsl'?>
...

However, for testing the raw *data*, it would be very useful to disable
this (with a keystroke / mouse-click or two), and just have the default
MSIE display of the XML tree. Does anyone know how to do this?

Best Regards, John