Sounds like a filename for a Nintendo Switch NSP (game) RAR archive with an update included. Breakdown of parts:
Emulation: If you are using a PC, these files can be loaded into emulators like Ryujinx. In the emulator settings, you must install the "Update" file separately via the "Manage Title Updates" menu. Planet of Lana -NSP--Update 1.2.3.0-.rar
Since you asked to "come up with paper" related to this specific file, here is a structured Technical Overview/README Sounds like a filename for a Nintendo Switch
Update 1.2.3.0: This specifies the version of the game included in the package. Updates usually fix bugs or improve performance compared to the launch version. Planet of Lana -NSP--Update 1.2.3.0-.rar