To use this file on a modified console, you must first extract the .nsp from the .rar archive. Common tools for installing these on a Nintendo Switch include Goldleaf or Tinfoil .
The specific nomenclature in your file name breaks down as follows: HARVESTELLA [0100EDD018032800][v65536][AS].nsp.rar
The unique identifier for HARVESTELLA on the Nintendo Switch eShop. To use this file on a modified console,
Downloading ROMs or NSPs for games you do not own is considered piracy . It is generally recommended to only use NSPs created from your own physical game dumps. HARVESTELLA [0100EDD018032800][v65536][AS].nsp.rar
An NSP file (the standard digital format for Switch games) that has been compressed into a RAR archive to reduce download size. Usage Notes
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