Certainly everybody knows what Microsoft Word is. This program that defined how document files are displayed and edited. Hell, it is so popular that there are tons of similar programs such as LibreOffice’s writer. Why is it so popular? Well the reason is the same for every mainstream program: it’s easy to use for a person that never used it before and Microsoft’s monopoly. Program can be figured out and used after max 2 minutes of just playing around with it, they even teach you how to use it at school due to how Microsoft throws it into every bulk order of their system.