Running A nano VNA file

["K0LNY_Glenn" <glenn@ervin.email>]

Hi All,
I downloaded NanoVNA-Saver for Linux at:
https://github.com/NanoVNA-Saver/nanovna-saver/releases/tag/v0.5.4
and I'm using Ubuntu with Orca.
I unzipped the file:
NanoVNASaver.linux.zip
and got a single file
nanovna-saver
The page says to chmod -x it because the executable flags get lost with the
unzipping.
So I did that with no errors.
But the file does not execute.
I just get command not found
I tried sudo bash nanovna-saver
and it says it's not an executable file
The NanoVNA is a device to test antennas for SWR and resonant frequency.
Thanks for any assistance.

Glenn