PhpSpreadsheet/tests/data/Reader/Xml/XEETestInvalidSimpleXML.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<root>
	<data>R&d</data>
	<data>R<d</data>
	<data>R>d</data>
	<data>R'd</data>
	<data>R"d</data>
</root>