What is a CDATA Section ?

CDATA Sections are used in places of text where there are lot of markups used.  For example using HTML code in an XML document will involve lots of "<" and ">" characters. They are enclosed within "<[CDATA[" and "]]>" tags.  This is also used to include XML files as an element

<[CDATA[ <p> HTML Text </p> ]]>

CDATA means Character Data (can contain markup characters)