code: public static BigExcelWriter getBigWriter(File destFile) {
  		try {
  			return new BigExcelWriter(destFile);
  		} catch (NoClassDefFoundError e) {
  			throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG);
  		}
  	}
docs: 获得{@link BigExcelWriter}，默认写出到第一个sheet，名字为sheet1
  
  @param destFile 目标文件
  @return {@link BigExcelWriter}