v65536 refers to the internal version numbering, typically indicating the first major update (often listed as v1.0.1 in the system menu). Region: [US] denotes the North American release. File Details
This indicates the NSP file is compressed in a RAR archive. You will need a tool like WinRAR or 7-Zip to extract the actual .nsp file before use. Usage and Installation Download [01007960049A0800][v65536][US] nsp rar
Most users use homebrew tools like Tinfoil or DBI to install the update from their SD card or via USB. v65536 refers to the internal version numbering, typically
To use this update file, you generally need a modified Nintendo Switch or an emulator. Extract the .rar file to get the .nsp file. Download [01007960049A0800][v65536][US] nsp rar