If you're OK with wrapper scripts, take a look at dtrx[0]. It can extract many different formats, so assuming you have the tools already installed, extracting anything can be done with `dtrx <filename>`.
Interesting, but pixz is too new for it, plus it looks like it's using extension to determine the type, so it won't work for the same reason as above. The benefit of pixz is much faster compression / decompression.
[0]: https://brettcsmith.org/2007/dtrx/