If you can clarify the (Pokeland Legends or another one) and what problem you are trying to solve (e.g., crashing, missing DLC, failed update), I can give you specific installation steps or potential fixes.

Means this update will work on a Switch console regardless of its region (e.g., US, Europe, Japan).

Used to update a pre-installed base game ( .nsp or .xci ) to a newer version to fix bugs or add content.

Sometimes updates are required to use new DLC content.

The file is compressed in a RAR format. You must extract this file using software like WinRAR or 7-Zip to access the .nsp file inside.