How extract 7zip with xarchiver?

[uggla]

I've tried loading p7zip.tcz and p7zip-full.tz but it won't work.

From the .info-file:
"Some formats (tar, unrar, p7zip, gzip) require the full GNU programs. They are listed as dependencies, but you can pick the ones you want."

What else is missing?

[Arslan S.]

well looks like upstream xarchiver does not have 7z support