We have found one software suitable in our database for this conversion.
Every computer with Windows Vista or later has a virtual XPS printer installed by default. Any program capable of printing can then print and save XPS documents instead printing on paper, which makes any xps conversion simple enough.
With PowerPoint installed (or any PowerPoint viewer), you can simply print your presentations (.ppt) as XPS documents. In case of ppt to xps conversion with presentations, each slide will be saved as a page in the .xps document.
PPT
A ppt file extension is traditionally used for Microsoft PowerPoint presentations. PowerPoint presentation can contain text, pictures, audio or video data. Sometimes also called slide shows.
XPS
Files with xps 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.