jxls里，为什么别人里面有transformer.transformXLS这个方法，我的会报错

Question

package com.cuc.util;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import net.sf.jxls.transformer.XLSTransformer;
public class Excelchart {
public void getChart(){
String templateFileName="D:\图表.xlsx";
String destFileName="D:\chart.xlsx";
List staff=new ArrayList();
staff.add(new Emoloyee("derk",35,3000,0.30));
Map> beans=new HashMap>();
XLSTransformer XLSTransformer = new XLSTransformer();
XLSTransformer.markAsFixedSizeCollection("employee");
XLSTransformer.transformXLS(templateFileName,staff,destFileName);

}

}
不知道是不是jar的问题，我的jar是poi-3.0-rc4-20070503.jar
jxls-core-1.0.2.jar,jxls-reader-1.0.2.jar