Android application package for a TV box, labelled as a release build dated 6 August 2022 at 17:56. The name gives no device model, chipset or firmware platform, so compatibility with a particular set-top box cannot be confirmed from it. An APK is installed on Android by sideloading, usually from a USB stick through a file manager or with adb install. Check the box's Android version and CPU architecture before installing, and keep the original launcher or apps available in case the new build misbehaves on that hardware.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @tv_software. Enginerys does not host this file.