You can export a course package to import into another course or backup a course.

Navigate to the course you would like to export and select Course Admin - > Import / Export / Copy Components.

Bubble fill Export as Brightspace Package

Select the blue Start button.

Select the components you would like to export and Continue. 

Confirm your selection and select the blue Export button.

You will receive a notification when the course package is ready to download. 

Click on the notification and click the link provided to download the export package.