xslt export.xnt is a XSLT Export
belonging to QuarkXPress(tm)
from Quark Inc.
Non-system processes like xslt export.xnt originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.