Each project and component can have its own set of files, allowing you to organize your files into meaningful groups like datasets or background research.
Each file is also given a unique, persistent URL, meaning that it can be cited or linked to individually.
First, open your project, then click the Files tab in the navigation bar.
The "Files" page will appear.
Select a storage location (e.g. OSF Storage). A toolbar will appear.
Either click the Upload button in the toolbar to select a file from a dialog box, or drag and drop files from your computer.
The file will be added to your project.