Subahibi steam patch

I hope this is okay to post here!

Okay so I bought Subahibi off steam, but I want to actually be able to play the whole game but it's NSFW and censored by steam... so I found a patch: Steam Patches for Frontwing Games (jastusa.com) - (just search Wonderful Everyday steam patch it's the first result). It says to run the ".exe" file to install the patch, but all there is for me is a file called "Wonderfuleveryday_18patch_ver2.0.zip", so I unzip the file using winzip and open the folder and it's filled with ARC files which I am unable to open... no .exe files in sight. I'm not suuuper tech savvy, so sorry if it's really obvious. I'm using a windows laptop btw and steam and Subahibi are 100% updated to the newest ver