qrenderdoc/share/renderdoc-capture.xml

<?xml version="1.0" encoding="UTF-8"?>
<mime-info xmlns="http://www.freedesktop.org/standards/shared-mime-info">
	<mime-type type="application/x-renderdoc-capture">
		<comment>RenderDoc capture file</comment>
		<magic priority="50">
			<match value="RDOC" type="string" offset="0:4"/>
		</magic>
		<glob pattern="*.rdc"/>
	</mime-type>
</mime-info>