Debian 9 Install not wokring. Exec format error

Debian 9 on Asus ROG MB with i7.
$ uname -a
Linux 143 4.9.0-8-amd64 #1 SMP Debian 4.9.144-3.1 (2019-02-19) x86_64 GNU/Linux

Downloaded : arduino-1.8.9-linuxaarch64.tar.xz

tar -xvf arduino-1.8.9-linuxaarch64.tar.xz

move arduino-1.8.9/ /opt/

/opt/arduino-1.8.9/install.sh

When try to start arduino from termimnal I get the following error:

$ /opt/arduino-1.8.9/arduino
/opt/arduino-1.8.9/arduino: line 35: /opt/arduino-1.8.9/java/bin/java: cannot execute binary file: Exec format error

Please throw me a bone.

You downloaded the wrong version of the Arduino IDE. That one is for 64 bit ARM processors. Please delete that installation of the Arduino IDE and then use the "Linux 64 bits" link on the downloads page:

Oh my . I'm embarrassed. Thanks.
LOL
I went with the nightly build and am going to try 1.8.10

You're welcome. I'm glad if I was able to be of assistance. Enjoy!
Per