Then "nspupdate" – NSP files are Nintendo Software Package files, used for distributing games on Nintendo Switch. So an update in NSP format. The "1143" could be a version number or file size in MB. "rar" is a file format, and "free" suggests they want a free download.
Then "nspupdate" – NSP files are Nintendo Software Package files, used for distributing games on Nintendo Switch. So an update in NSP format. The "1143" could be a version number or file size in MB. "rar" is a file format, and "free" suggests they want a free download.