Therefore, if you save or copy a file to your Assets folder, Unity imports it and it then appears in your Project window. You can save or copy files that you want to use in your project into the Assets folder, and you can use the Project window A window that shows the contents of your Assets folder (Project tab) More info See in Glossary inside Unity to view the contents of your Assets folder. When you create a Unity project, Unity creates a folder (named after your project) which contains the following subfolders: Unity also detects when you save new changes to the file and re-imports files as necessary. For many common formats, you can save your source file directly into your project’s Assets folder and Unity can read it. To do this, you can either export the file directly into the Assets folder for your project, or copy it into that folder. You can bring assets created outside of Unity into your Unity project.