To comment out a block of tags in XML, use the XML comment syntax: <!-- to start the comment and --> to end it. Place the block of tags between these markers. For example:
This will disable the block from being processed. Ensure that no -- appears within the comment block, as it will cause a parsing error. Comments are useful for temporarily removing sections of XML or adding notes for developers without affecting the document’s functionality. Always validate your XML to avoid syntax issues after commenting.