New Mac users may not know about TextEdit, a simple but deep text editing and word processing tool that comes with your Mac. You can use TextEdit to create documents in cases when a full word processor like Pages or Microsoft Word isn't necessary. TextEdit has two modes: plain text and rich text. You can use the first for writing, notes and coding. You can use the second for word processing. TextEdit also allows you to open Microsoft Word documents which is useful if you are sent one but haven't bought Word.