I downloaded a program called "arduino-1.8.10-linuxaarch64.tar.xz. When I click on "downloads" I get the icon. If I left double click I get "Reading "arduino-1.8.10-linuxaarch64.tar.xz". This gets me to "arduino-1.8.10". If I left double click I get 14 choices. If I right click I get choices of "Open", "Extract" "cut", "copy", "paste" which is grayed out, "rename", "delete". Then I'm lost. Do I need to extract or open? I tried watching some Youtube installation videos. No luck.