Hi, yesterday it was released PeaZip 3.8, that adds full support for WIM and XZ archives.
Linux versions of the software are available at PeaZip for Linux - Free file and archive manager - 7Z RAR TAR ZIP...
Generic RPM, not targeted to a specific system/version, is available both compiled for GTK2 widgetset (recommended) and for Qt.
Alternatively it is possible to use the portable version, that does not need to be installed.