@Override
    public WriteCellData<?> convertToExcelData(LocalDate value, ExcelContentProperty contentProperty,
                                               GlobalConfiguration globalConfiguration) throws Exception {
        LocalDateTime localDateTime = value == null ? null : value.atTime(0, 0);
        WriteCellData<?> cellData = new WriteCellData<>(localDateTime);
        String format = null;
        if (contentProperty != null && contentProperty.getDateTimeFormatProperty() != null) {
            format = contentProperty.getDateTimeFormatProperty().getFormat();
        }
        WorkBookUtil.fillDataFormat(cellData, format, DateUtils.defaultLocalDateFormat);
        return cellData;
    }
LocalDate and date converter

@author Jiaju Zhuang
fastexcel-core/src/main/java/cn/idev/excel/converters/localdate/LocalDateDateConverter.java