How to create an environment for program downloaded from github

[StartedNewLife]

I downloaded a ZIP package from git hub.
Also downloaded anaconda.
According to the instructions, I should create an environment.
But I need to indicate the path to the .yml

I wrote this:
(base) C:\Users\UserName>cd conda env create -f cmd C:\Users\UserName\Downloads\folder1\folder2\environment.yml

Something is incorrect.

I am a total newbie and I need for now just to install it.
Please, correct, what I am doing wrong