File extension 3dsx relates to the executable format used by homebrew games and programs for Nintendo DS console. These 3dsx files contain executable data to run games and programs. 3dsx file format is obsolete now. Files with 3dsx extension are used by executable format for Nintendo DS.
How to open: If you don’t see the program you need, search for other applications on your PC to open the file.
3DSX file issues: Check the file extension. Similar extensions to 3dsx could cause operating systems and programs to not recognize the file. Be careful, 3dsx files can contain viruses.
Homebrew 3DS games and programs use the 3dsx format to function with various exploits. The homebrew launcher itself is a boot.3dsx file placed at your 3DS’s SD card root. Common names: boot.3dsx – launches homebrew launcher.
Do not open 3DSX files on a PC. Use your PC’s file explorer to put 3dsx files on your 3DS’s SD card to run on the device.
The 3dsx extension may be used by harmful programs. Be cautious with 3dsx files from unknown sources. Similar extensions to 3dsx that could cause confusion: 3ds, 3dx, dsx.
3DSX is a Nintendo 3DS executable format for homebrew software. See http://3dbrew.org/wiki/3DSX_Format for details. 3dsxtool converts ELF executables to 3DSX format for 3DS homebrew development.
The Homebrew Launcher
Citra