A: Yes, but you need the password. Right-click > 7-Zip > Extract, then enter the password. Without the password, conversion is impossible.
You a .7z archive into a .3ds file because they are different file types: one is a compressed folder (7z) and the other is a disk image or 3D model (3ds). To get the .3ds file, you must extract it from the archive. How to "Convert" (Extract) 7z to 3ds Extract the archive : Use a tool like 7-Zip or WinZip . convert 7z to 3ds
The conversion was complete. History was preserved. A: Yes, but you need the password
A new folder or file will appear containing the .3ds game ROM. Method 2: Online Conversion (EasyZip) convert 7z to 3ds