NandFiler is a save management tool that comes bundled with the TwlSDK and the SystemUpdater application. Included are options to backup/restore saves, and to edit files in a hex editor. The hex editor can be used for "cheating" for a test, and manual save file corruption. Developers are required by lotcheck tests to make sure their DSiWare can detect and handle damaged saves, so NandFiler is extremely important.

NandFiler's icon.

Screenshots