I have a similar issue to @shipwreck5's recent post, and I have been trying to research (reading past posts on the Temp and elsewhere) regarding this, but I couldn't quite find a definite answer. My purpose in wanting to convert a .CIA file to a .3DS file is that I want to test a game on on the Citra 3DS emulator. Therefore, I used '3DS To CIA Converter v4.1' and selected the 'Start CIA to 3DS Converter' option. I received an error: "Could not read exheader file!". This leads to me believe that my .CIA file is still encrypted. I read a post that one needs to have Xorpads (keys) to decrypt the .CIA in order to convert it to a .3DS or a .CCI file (files that are read by the Citra 3DS Emulator), although that post was from quite some time ago, and I'm unsure if it is outdated. I do understand, however, that as of now, Citra can ONLY run decrypted games, or else the program will crash as it has on me . I am also unsure if a 3DS is still required to decrypt games or that people can now simply decrypt them using a program on their computer (this I think is unlikely, but that's what I'm trying to do for the purpose of testing). As a Plan B, I tried running in cmd, 'makerom3.exe' and convert my .CIA file to a .CCI file from there. It posed the error: Error from 'makerom3.exe' [CCI ERROR] Failed to decrypt CIA content: 0x0000000 [RESULT] Failed to build CCI I am very new and naive to this 3DS stuff, even more so than Wii hacking; so, if I'm saying things here that are blatantly wrong, I apologize. Any help will be greatly appreciated, and thanks in advance. Edit: An update below.