You can check out our Font Installation guide for windows or a separate guide on the installation of Fonts in Mac. However, we also have a guide on installing Font in MS Word as well as in Adobe.The design of Helvetica is a neo-grotesque that is one the most influenced and very top trending designs of the 19th century.
You might also don’t know that Akzidenz-Grotesk as it’s also a very famous font in the designers.