private List<FillData> data() {
        List<FillData> list = ListUtils.newArrayList();
        for (int i = 0; i < 10; i++) {
            FillData fillData = new FillData();
            list.add(fillData);
            fillData.setName("Zhang San");
            fillData.setNumber(5.2);
            fillData.setDate(new Date());
        }
        return list;
    }
Example of filling an Excel template with date formatting.
<p>
This method demonstrates how to fill an Excel template where date fields
are already formatted in the template. The written data will automatically
follow the predefined date format in the template.
fastexcel-test/src/test/java/cn/idev/excel/test/demo/fill/FillTest.java