EXTJS grid导出EXCEL文件

[{"title":"（ 1328 个子文件 20.37MB ） EXTJS grid导出EXCEL文件","children":[{"title":"org.eclipse.core.resources.prefs <span style='color:#111;'> 271B </span>","children":null,"spread":false},{"title":".project <span style='color:#111;'> 1.25KB </span>","children":null,"spread":false},{"title":"import.css <span style='color:#111;'> 2.50KB </span>","children":null,"spread":false},{"title":"ext.jsb2 <span style='color:#111;'> 43.92KB </span>","children":null,"spread":false},{"title":"gpl-3.0.txt <span style='color:#111;'> 34.32KB </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]