If you have a .7z file and want an .nds file, you don't actually need a "converter." A .7z file is just a compressed folder (like a .zip) that likely has your Nintendo DS game hidden inside. Here is how to get your game file out: How to "Convert" (Extract) 7z to NDS
A 7z to NDS converter is not a standard or officially supported tool. Instead, it refers to a utility that would: 7z to nds converter
How to use: Drag the .7z file onto the app icon, and it will automatically extract the .nds file to the same folder. 3. ZArchiver (Android) If you have a
7-Zip will extract each archive into its own subfolder or directly to your chosen destination, preserving filenames. Security 7-Zip will extract each archive into its