We have found one software suitable in our database for this conversion.
Should you need it, you can convert XPS documents to newer OXPS format using the XpsConverter command-line utility provided by Microsoft.
Be advised that OPXS is much less supported file format, and you will have trouble working with it outside Windows 8/10 platform.
XPS
Files with xps file extension are almost always documents that were exported or printed in Microsoft Windows with the default Microsoft XPS Document Writer virtual printer, for example in MS Office applications. XPS format is Microsoft's much less popular alternative to PDF for fixed layout exchange documents.
OXPS
Files with oxps file extension are documents created in Windows 8/10/11 using the latest version of the Open XML Paper Specification. You can easily view *.oxps files using the pre-installed Windows XPS viewer, but only in the latest versions of Windows. For older versions of Windows, you will need to convert oxps to xps.