Which of the 8 Files do I Need ?

Dear MicroG

I want to install LineageOS for microG.

I have read the instructions very carefully.

They say I only need 2 files.

BUT the download page https://download.lineage.microg.org/jfltexx/
lists 8 files (NOT 2).

Is there anyone reading this who has actually installed
" LineageOS for microG " on a smartphone who could help me with ONE QUESTION please ?

Q1. Which 2 of these 8 files do I need to use to successfully install LineageOS for microG on my phone ?

In case it's important -

phone is Samsung Galaxy S4 GT - I9505 jfltexx,

with the latest stock Android 5.0.1

I am using a Mac with Mac os (not windows) and Heimdall (not Odin).

Yours sincerely ROMMMELLL