Pokemon Legends Arceus -nsp--atualizacao 1.1.1-... Access

The term refers to the file container format used for digital titles, DLC, and updates on the Nintendo Switch. In the context of "Atualização 1.1.1" (Portuguese for "Update 1.1.1"):

To understand 1.1.1’s value, know that 1.1.0 added: Pokemon Legends Arceus -NSP--Atualizacao 1.1.1-...

The mention of suggests a Nintendo Submission Package file format, which is typically used for installing games on the console via custom firmware. The term refers to the file container format