Double-check the file extension. In Windows, file extensions are sometimes hidden, meaning your file might actually be named keys.txt.txt . Turn on "File name extensions" in the Windows Explorer View tab to fix this.
Let’s fix this permanently.
The location of the sysdata folder depends on your operating system: citra aes keystxt download fix
Press Win + R , type %AppData% , and hit Enter. Open the Citra folder. Double-check the file extension