What is an is1 file and how do I open an is1 file?
IS1 files are M3 Sakura Real-Time Save 1 Files or the data files that are created using M3 Sakura. These are the files containing the game state while it is played and these are also the files that are used to save game snapshots even if saving is not allowed during the time. Apart from the IS1 file extension used to save these files, the saved M3 Sakura slots also make use of ".is0," ".is2," and ".is3” file extensions. The IS1 file extension was developed by M3 Sakura and the IS1 files are categorized as data files. The IS1 files can be opened on a Windows operating system with M3 Sakura. M3 Sakura is a Nintendo DS loader running on M3DS Real and M3i Zero flashcarts. The software was developed by MoonLight and was released officially last May 30, 2008 in Japan. This software is also known for its fast menu, excellent controls, built-in media player as well as other features that make it the most preferred Nintendo DS loader for almost all M3 cart users.
Relevant is1 file links:
How to open is1 file on YoutubeHow to open is1 file on Wikipedia
How to open is1 file on Microsoft.com