Once you have the file, it must be moved to Citra's folder. The location varies by operating system: Operating System Directory Path Windows C:\Users\[YourName]\AppData\Roaming\Citra\sysdata\ Linux ~/.local/share/citra-emu/sysdata/ Linux (Flatpak) ~/.var/app/org.citra_emu.citra/data/citra-emu/sysdata/ macOS ~/Library/Application Support/Citra/sysdata/ Android Internal Storage/citra-emu/sysdata/
aes-keys.txt file is a critical configuration file used by the Citra emulator (and its successors like aes-keys.txt citra
Place your aes_keys.txt file in the folder of your Citra user directory. If the folder does not exist, you must create it manually. Typical Path Windows C:\Users\ \AppData\Roaming\Citra\sysdata\ Android Internal Storage/citra-emu/sysdata/ Linux/Steam Deck ~/.var/app/org.citra_emu.citra/data/citra-emu/sysdata/ macOS ~/Library/Application Support/Citra/sysdata/ Alternative: Using Decrypted ROMs Once you have the file, it must be moved to Citra's folder
The legally recommended method is to dump these keys from your own Nintendo 3DS hardware. Once you have the file