...
Login to Experience Manager.
Click SEE ALL PROJECTS to see the list of projects.
Select the project you want to archive from the project listing page and click on the vertical ellipses button.
Select Archive from the drop-down menu.
Type the project name when prompted and click OK.
The project is archived and will be hidden from the Project listing page.
...
To view archived projects, click on the archive icon from the project listing page.
Select the project from the archived projects list and click the vertical ellipses button.
Select Restore from the drop-down menu.
Your project is successfully restored and will be visible in the project listing page.
...
After archiving a project, click the archive icon from the project listing page.
Select the project from the archived projects list and click on the vertical ellipses button.
Select Delete Permanently from the drop-down menu.
Click OK in the confirmation dialog box.
Your project is permanently deleted from the database.
...