That is not a mod it is a modpack. What you need to do is download the Twitch App located at https://app.twitch.tv/ once installed and synced with your minecraft, curse and twitch profiles you can download all the modpacks from curse inside the Twitch app by going to the Mods tabs and picking minecraft.
However if you already have the twitch app you can just double click on the file and open it with the twitch app and it should install the modpack for you. but TBO it is a lot easier to just use the Twitch app to get the modpack.
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