.IS1 File Extension

M3 Sakura Real-Time Save 1 File

Developer M3 Sakura
1.3  |  3 Votes

What is an IS1 file?

Data file created by M3 Sakura, a loader for the Nintendo DS that runs on the M3DS Real and M3i Zero flashcarts; stores the state of a game as it is played; used for saving game snapshots, even when the game does not allow you to save at that time.

More Information

M3 Sakura save slots also use extensions such as ".is0," ".is2," and ".is3."

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Programs that open or reference IS1 files


Synergy/DE Data Index File

Developer Synergex
1.0  |  2 Votes

File used by Synergex's ISAM (Indexed Sequential Access Method) File Maintenance Utility (isutil), a file indexing program that is part of the Synergy/DE software; contains indexed information used for fast file lookup.

Programs that open or reference IS1 files


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