Kuika's Upload File action is used to upload files from your device to a server. It allows files to be stored and managed in a centralized database. By automating the file upload process, it allows users to easily share important documents or data files and store them on the server. For example, when a user uploads a document or media file to your application, this action ensures that the file is correctly transferred to the server. In this tutorial, you will learn how to upload files from your device to the server using the Upload File action.