: Create save states at any time to resume exactly where you left off.
The file you are referring to, SNES-NSO-(USA)-NSwTcH-NSP-Update340-Ziperto.rar , is a package for the (SNES-NSO) app on the Nintendo Switch. This specific update (v3.4.0) introduced several features to the classic game library: Key Features in Update 3.4.0 SNES-NSO-(USA)-NSwTcH-NSP-Update340-Ziperto.rar
Super Nintendo Entertainment System™ - Nintendo Switch Online : Create save states at any time to
: Play classic co-op or competitive games with friends online, including a "virtual pass the controller" feature. SNES-NSO-(USA)-NSwTcH-NSP-Update340-Ziperto.rar