Use an app like ZArchiver from the Google Play Store. It allows you to navigate to your .7z file and tap Extract to reveal the .nds ROM inside.
Have more questions about DS emulation or file formats? Leave a comment below or check our in-depth guides on MelonDS settings and R4 card setup. 7z to nds converter
Right-click (or long-press) your .7z file and choose an "Extract" option. Identify the NDS File: Look for a file ending in .nds . Use an app like ZArchiver from the Google Play Store
To "convert" 7z to NDS, you just need to the archive. Download 7-Zip for PC or ZArchiver for mobile, right-click the file, and unzip it. Once you see the file ending in .nds , you are ready to load it into your emulator and start playing. Leave a comment below or check our in-depth