That is, when you create a new folder within a folder, the newly created folder is created within this folder. This makes it easier to organize your worksheets and set up your folder system in the most transparent way. And the navigation button in the upper left corner shows you the folder you are currently in. This button is clickable, so you can click the name at any time to go back to another level. For example, if you have a folder within a folder and there are subfolders related to it, you don't have to go back to the desktop one step at a time. Use the navigation button and click the desktop to go back here.