: Go to SD -> cias , select your DLC file, and choose Install and delete CIA .
If you have DLC installed on your console and want to back it up to an archive: 3ds dlc archive
To ensure the survival of the archive, you can: : Go to SD -> cias , select
In the absence of an official preservation path from Nintendo, enthusiasts and historians have stepped in. The 3DS and Wii U eShops have been permanently shut down. : Go to SD -> cias