: Community-developed firmware or driver patches for Rockchip TV boxes.
Based on available information, appears to be a compressed archive file associated with LibreELEC custom firmware images for Rockchip-based TV boxes. 21117.rar
: Depending on the contents, it usually involves flashing an image to an SD card or replacing specific system files in a LibreELEC installation. ⚠️ Safety Warning which is a proprietary compression format.
: A RAR (Roshal Archive) file, which is a proprietary compression format. 21117.rar