I am able to remove MyTasks and My workflow from the dashlet how to remove it from the header? I removed from the dashlet by editing my-tasks.get.html.ftl. But how to remove from the header menu. Which file should I modify
You mean to say, you want to remove/rename the title "My Tasks" of that dashlet ? You can edit/rename it from my-tasks.get.properties file at the same location. (tomcat\webapps\share\WEB-INF\classes\alfresco\site-webscripts\org\alfresco\components\dashlets)