NandFiler

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

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  What NandFiler looks like when you start it up.
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  Highlighting a random file from Flipnote Studio that was stored somewhere on the NAND.
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  The hex editor itself.
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  The hex editor again, now with on-screen instructions by pressing SELECT.
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  NandFiler backing up a folder from an application. The folder gets extracted as a file to the SD Card.
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  The Export and 'Fill' options, which can only be used on things stored on the SD Card.