Conversion of oxps files to xml file format

OXPS documents are only created with the default XPS tool available since Windows 8 and later. Your best shot for oxps to xml conversion is to first convert oxps to xps, which is a little more supported format. Once you have the XPS you need to use of the XPS conversion tools to try to export it as XML files with which could work. Sometimes you would need to convert xps to pdf first before finally converting it to the format you need.

Open OXPS file    Open XML file