Unzip and move preset file or folder to "User"/Documents/Studio One/Presets/PreSonus/FX Chains (If the "FX Chains" folder isn't there, just create it yourself.)
Open Studio One and create a new audio track
On the menu bar in the top left, click View > Inspector
Click the little arrow to the right of where it says "Inserts" to bring up a menu. Locate the preset and click on it to activate!
I highly recommend you add a pitch corrector plugin such as auto tune as the first plugin on the chain. Studio One does not have a stock pitch corrector, so I could not add one in the preset. However, there is a free pitch correct called MAutoPitch that you can download!
Lastly, change the pitch correction to the key of the song. If you don’t know the key of the song or can’t google it, then use this site: https://getsongkey.com/tools/key-finder