plugins/org.eclipse.qvtd.xtext.qvtrelation/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>

<!--
-->

<plugin>

  <extension point="org.eclipse.core.contenttype.contentTypes">
	<content-type id="org.eclipse.qvtd.xtext.qvtrelation" name="%QVTrelationName" 
		base-type="org.eclipse.core.runtime.text"
		file-extensions="qvtr"
        default-charset="UTF-8">
         <describer class="org.eclipse.ocl.pivot.resource.NotXMLContentHandlerImpl$Describer"/>
      </content-type>
  </extension>

   <extension point="org.eclipse.emf.ecore.generated_package">
      <package
            uri="http://www.eclipse.org/qvt/2015/QVTrelationCS"
            class="org.eclipse.qvtd.xtext.qvtrelationcs.QVTrelationCSPackage"
            genModel="model/QVTrelationCS.genmodel"/>
   </extension>

   <extension point="org.eclipse.team.core.fileTypes">
      <fileTypes extension="qvtr" type="text" />
      <fileTypes extension="qvtrcs" type="text" />
   </extension>
</plugin>