An XPS, or XML Paper Specification, file is generally used to preserve the layout and content of a document, similar to a PDF file. The most common way to create an XPS file is using Microsoft Office and the "Microsoft XPS Document Writer" printing function. XPS files can be opened using an official Microsoft program on versions of Windows that don't already support the file type, and with a third party program, NiXPS, on Mac OS X.
Download and install the Microsoft XPS viewer using the link in the resources section of this article. If you have Windows Vista or Windows 7, skip this step.
Navigate to the .XPS file you want to open using Windows Explorer or the "My Computer" shortcut in the "Start" menu.
Double-click on the XPS file to open it.
Download and install a free trial of NiXPS using the link in the "Resources" section of this article.
Open your "Applications" folder. Select NiXPS and wait for it to launch.
Click the "File" menu and select "Open."
Navigate to the XPS file you want to open, click to select it, and then press "Open." If you can't find the file, try typing ".xps" in the search box in the top right corner.
-Create your own XPS files by choosing "Print" in any Microsoft Office application and using the "Microsoft XPS Document Writer" printer. -NiXPS is also available for Windows.