Several document readers and converters nowadays support the direct conversion of Windows OpenXPS format (.oxps) to JPEG (.jpg, .jpeg) pictures. What this conversion does, is making a .jpg picture for every page of the .oxps document. The resulting files will be pretty large and you won't be able to work with them using standard word processors.
Convert Windows OpenXPS document to JPEG bitmap image format.
We have found 4 software records in our database eligible for .oxps to .jpg file format conversion.
Microsoft Windows software - convert oxps to jpg on Windows
One of the many XPS and OXPS converters
Convert from oxps file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned oxps to jpg. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert oxps to jpg on OS X
An XPS and OXPS viewer for Mac
One of the many document converters for Mac
An XPS/OXPS reader for Mac