工作表批量重命名，批量修改excel文件的名称，提供多种命名方式 -Worksheet batch rename, batch modify excel file name, providing a variety of naming

对于在网易公开课可汗学院(http://open.163.com/khan/)批量下载到的视频可以批量命名,自动把id号转化为相应的课程.-Netease open class for Khan Academy (http://open.163.com/khan/) batch download batch of video can be named id number automatically converted to the corresponding courses.