FYI...

MS KB 2732059 - .oxps files ...
You cannot open an .oxps file in Windows 7 or in Windows Server 2008 R2
- http://support.microsoft.com/kb/2732059
Last Review: September 26, 2012 - Revision: 2.0
"This issue occurs because Windows 7 and Windows Server 2008 R2 do not support the .oxps format. The supported XPS document format in Windows 7 and in Windows Server 2008 R2 is .xps... This update is available from the following Microsoft Update website:
https://update.microsoft.com
Applies to: Win7, Windows Server 2008 ..."