You can change the name of any of your Documents and Files at any time. When the Document is in editing mode, you will see the name of your Document in a text field at the top of your Document. All you need to do is type your new Document name into that text field. Once you have done that, you will need to click on either the “Save” or the “Save and Exit” button to save your changes.
Follow the steps in the image below to change your Document name: