AppsFile is not a custom class that you need to define, nor is it a standalone module. It is a predefined object class within the UiPath Apps environment, specifically designed for handling file uploads, downloads, and interactions within an app.
In UiPath Apps, AppsFile is used to represent files that users upload, enabling you to manage files within the application. It is a built-in entity rather than something custom that you would need to create. You can use it in your app to handle file data (e.g., filename, file size, content) for various processes, such as file validation, file input from users, and passing files between different processes in your app.
So, to clarify, AppsFile is part of the UiPath Apps framework, not a custom class or module