Font files include .otf, .ttf, and webfonts. Some fonts include OpenType features, best accessed through programs that support OpenType features like Adobe Photoshop or Adobe Illustrator — you can access them through the Glyphs panel! Ligatures, swashes, and other special characters may also be (tediously) accessed through a standard character map and copy/pasted. It is highly recommended that you understand what you are purchasing before you do so — the extra characters WILL take some hunting down if you don’t have easy-access software like Adobe products.
Licensing? Easy peasy! Please feel free to use this font for personal & commercial projects, but please never, ever share or transfer the files to others.