To be charitable, perhaps the user wants to convert a different archive format to 3DS. Here is the legitimate workflow for actual 3D file conversion:
Most repacks are designed to be portable. This means you don’t need to install the software to use it. You can simply extract the folder onto a USB drive and run the converter on any computer. This is perfect for gamers or designers who work across multiple machines. 7z to 3ds converter repack
If you’ve got a pile of .7z ROMs and need .3ds files for Citra or a flashcart, this repack makes the process simple. To be charitable, perhaps the user wants to