Is there a way to import an uasset file?

4.11.2 trying to follow the tutorial:
Landscape Quickstart page 4

  1. migrated .uasset files can not be seen by the content browser.
  2. creating new folders from content browser does shows newly created folders inside the content browser, but in windows explorer (so those actually were not created)
  3. as previous poster suggested, those uasset files are “++UE4+Release-4.11” so it is not the case

also i noticed, that content browser supports importing a lot of different filetypes of any kind, but not the .uassets, so i can not follow the Quickstart tutorial properly (in this case can not at all)

Update:
migrating files entirely through Content browser (without manual folder management through windows explorer) does help here

a second potential workaround is to “export” those assets (they are extracted away from .uassets in this case)