Created attachment 117629 [details] screen SUMMARY STEPS TO REPRODUCE 1. Run kde5-krusader 2. Try to open file *.xz OBSERVED RESULT Can't open file *.xz - protocol is not supported EXPECTED RESULT Possibility to work with *.xz files SOFTWARE/OS VERSIONS Linux/KDE Plasma: 4.14 KDE Plasma Version: 5.12.7 KDE Frameworks Version: 5.49.0 Qt Version: 5.9.6 ADDITIONAL INFORMATION Detected in 2.7.1 version, also reproduced for 2.7.0 version Files *.xz can be successfully opened via Dolphin
The problem is that the archive is not a tar.xz but only a single file which cannot be opened by krarc. It can still be opened with right-click->open with->Ark which is what Dolphin does automatically.
*** This bug has been marked as a duplicate of bug 365210 ***