You hit Ctrl + P in an app like Word or even a browser.

Instead of sending data to a physical machine, these drivers convert documents into non-editable files that look exactly like they would on a printed page. 📜 The Evolution: Image Writer to XPS

When you select "Print" from any Windows application, these drivers appear as a printer option in the list.

While most people now use , the XPS Writer remains essential for specific legacy software: Microsoft XPS Document Writer (MXDW) - Win32 apps

The (MODIW) and its modern successor, the Microsoft XPS Document Writer (MXDW), are "virtual printers" designed to let you save digital documents without ever touching paper.