You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or
API help for more information.
<?xml version="1.0"?>
<api>
<query>
<allcategories>
<c size="113" pages="113" files="0" subcats="0" xml:space="preserve">64-bit</c>
<c size="7" pages="7" files="0" subcats="0" xml:space="preserve">ASTER Science</c>
<c size="1" pages="1" files="0" subcats="0" xml:space="preserve">AVIRIS Science</c>
<c size="11" pages="11" files="0" subcats="0" xml:space="preserve">CRISM Science</c>
<c size="0" pages="0" files="0" subcats="0" xml:space="preserve">Category namespace templates</c>
<c size="0" pages="0" files="0" subcats="0" xml:space="preserve">Common Procedures</c>
<c size="18" pages="18" files="0" subcats="0" xml:space="preserve">Data Manipulation</c>
<c size="55" pages="55" files="0" subcats="0" xml:space="preserve">Davinci's Shadow</c>
<c size="223" pages="223" files="0" subcats="0" xml:space="preserve">Davinci Core</c>
<c size="22" pages="22" files="0" subcats="0" xml:space="preserve">Davinci Variable Information</c>
</allcategories>
</query>
<query-continue>
<allcategories acfrom="Field Spectrometer" />
</query-continue>
</api>