As an alternative to the PDF, Microsoft introduced an electronic paper format – XPS for creating and sharing documents. The format allows you to save and publish content in an easily viewable form. An XML Specification Paper (XPS) document can be created in any program you can print from, using a XPS Document Writer. The Microsoft XPS Document Writer (MXDW) is a print-to-file driver that enables a Windows application to create XML Paper Specification (XPS) document files on versions of Windows starting with Windows XP with Service Pack 2 (SP2). In short, it allows you to create .xps files in any program that has a print option. Once the XPS document is created and saved in XPS format, you cannot edit its contents.