XPS stands for XML Paper Specification and it is the file format developed by Microsoft for defining the layout, appearance and printing information of any document.
Even though it resembles PDF format, it uses XML as its base formatting type instead of the PostScript language.
In order to modify the contents of these files, users need to select a compatible software tool that supports XPS.
XPS editors will offer users the possibility to split or merge their files, according to the parameters they set.
Furthermore, these utilities will also allow them to rearrange the pages or extract some of them, while also being able to add custom signatures.