Project Files
A project file (extension *.cpr) is the central document in Cubase. A project file contains references to media data that can be saved in the project folder.
Note
We recommend to save files only in the project folder, even though you can save them in any other location to which you have access.
The project folder contains the project file and the following folders that Cubase automatically creates when necessary:
Audio
Edits
Images
Track Pictures