The photo file created in the specified folder is automatically converted to the last modified time name of the file as shown below. in short 2018032323014430.jpg or 2007070122135431.png It will be easier to arrange in chronological order. You can specify multiple folders (up to 10 locations). Click the "Convert on the spot" button, or the service resident in the notification bar will automatically convert the names of all the images and video files under those folders in one shot. * The update time is used instead of the file creation time. The update time is to move or download the file Please note that it will change just by doing it. *For many recent Chinese smartphones You need to set the automatic startup of this app by yourself.