[alibaba/easyexcel]使用.withTemplate(templateFileName)后，文件第一行为空白

触发场景描述

触发Bug的代码

            .withTemplate(templateFileName)
            .relativeHeadRowIndex(0)
            .head(head())
            .sheet("专利清单")
            .doWrite(datas);
private List<List<String>> head() {
        List<List<String>> headList = new ArrayList<List<String>>();

        List<String> index = new ArrayList<String>();
        List<String> patentName = new ArrayList<String>();
        List<String> inventionType = new ArrayList<String>();
        List<String> departmentName = new ArrayList<String>();
        List<String> inventor = new ArrayList<String>();
        List<String> mainInventorName = new ArrayList<String>();
        List<String> mainInventorTel = new ArrayList<String>();
        List<String> mainInventorPhone = new ArrayList<String>();
        List<String> mainInventorEmail = new ArrayList<String>();
        List<String> technicalField = new ArrayList<String>();
        List<String> standardType = new ArrayList<String>();
        List<String> expeditedFlag = new ArrayList<String>();
        List<String> description = new ArrayList<String>();
        List<String> remark = new ArrayList<String>();

        index.add("动态列表"+ System.currentTimeMillis());
        index.add("序号");

        patentName.add("动态列表"+ System.currentTimeMillis());
        patentName.add("提交姓名");

        inventionType.add("动态列表"+ System.currentTimeMillis());
        inventionType.add("申请类别");

        departmentName.add("动态列表"+ System.currentTimeMillis());
        departmentName.add("上报单位");

        inventor.add("动态列表"+ System.currentTimeMillis());
        inventor.add("发明人");

        mainInventorName.add("动态列表"+ System.currentTimeMillis());
        mainInventorName.add("联系人");

        mainInventorTel.add("动态列表"+ System.currentTimeMillis());
        mainInventorTel.add("联系电话");

        mainInventorPhone.add("动态列表"+ System.currentTimeMillis());
        mainInventorPhone.add("联系手机");

        mainInventorEmail.add("动态列表"+ System.currentTimeMillis());
        mainInventorEmail.add("联系邮件");

        technicalField.add("动态列表"+ System.currentTimeMillis());
        technicalField.add("所属技术领域");

        standardType.add("动态列表"+ System.currentTimeMillis());
        standardType.add("与标准关系");

        expeditedFlag.add("动态列表"+ System.currentTimeMillis());
        expeditedFlag.add("是否加急处理");

        description.add("动态列表"+ System.currentTimeMillis());
        description.add("专利简要说明");

        remark.add("动态列表"+ System.currentTimeMillis());
        remark.add("备注");

        headList.add(index);
        headList.add(patentName);
        headList.add(inventionType);
        headList.add(departmentName);
        headList.add(inventor);
        headList.add(mainInventorName);
        headList.add(mainInventorTel);
        headList.add(mainInventorPhone);
        headList.add(mainInventorEmail);
        headList.add(technicalField);
        headList.add(standardType);
        headList.add(expeditedFlag);
        headList.add(description);
        headList.add(remark);

        return headList;
    }

提示的异常或者没有达到的效果