.ZS3 File Extension
File TypeZSNES Slot 3 Saved State File
What is a ZS3 file?
Save stat file created by ZSNES, an SNES emulator for PCs; stores a saved game snapshot for an emulated game; used to save and load game progress.
NOTE: ZSNES save states are different than in-game save states since ZSNES save states can be created at any point during gameplay. In-game save states typically are controlled by milestones within the game content.