Diagrams are automatically saved into OneDrive by default in the Documents folder, but you can move them individually and export as an image, PDF or HTML code for embedding the diagram on a web page).

Visio in Microsoft 365 is a superb tool for creating custom diagrams to illustrate concepts that are difficult to explain through text. Here’s how to use it.

Its 2013 incarnation has several new features that improve upon prior versions, including commenting functions, simultaneous co-authoring of diagrams, and touch support for tablet devices.