Open an .oxps file
Drop it on the box above. The pages are drawn in your browser, nothing is uploaded, and you can move through them, print them or copy out the text.
Save it as PDF
Press Download PDF. You get a normal PDF with sharp vector pages and searchable text.
Do I need to rename .oxps to .xps?
No. Some older viewers only accept .xps, and renaming doesn’t convert anything anyway; the two formats differ slightly inside. This page reads both as they are.
More: What is an XPS file? · Open an XPS file on Windows 11 · Convert XPS to PDF, privately