Using the Refactor on Import wizard -
Step 2: Select Import Archive
      Use this page to select the archive you want to import. The form lists all the archives currently uploaded to the
      Pega Platform
      server
      ServiceExport
      directory.
    
Select the name of the file you want to import, and click Next.
If you do not see the name of the file you want to import, click Back and use the Upload form to copy the file to the server.