PC: To extract a single file or folder, double-click the compressed folder to open it. Then, drag the file or folder from the compressed folder to a new location. To extract the entire contents of the compressed folder, right-click the folder, click Extract All, and then follow the instructions.
Mac: Double click the .zip file, then search for the product folder or product file.

On a PC: Double click on the OTF or TTF file, then click "Install."
On a Mac:
Double click on the OTF or TTF file, then click "Install Font."
Alternately, you can manually install fonts to bypass Fontbook: Copy (CMD + C) the file(s) either OTF or TTF format, then Paste (CMD + V) the files into this folder: HD > Library > Fonts

Important: Restart the program where you intend to use the font, and the fonts will show up in your font list when you open the program again.

If you want to use stylistic alternates both for uppercase and lowercase glyphs, stylistic alternates for final lowercase glyphs (longer tails), standard and discretionary ligatures you should install OTF format.
In order to use all OTF you need a program such as Adobe Photoshop CC 2015+, Adobe Illustrator, Adobe InDesign, etc.