Hi.. my problem Xarchiver to open rar file was solved.. thanks to Trixar and Claudinei :).. but now i get problem with .7z file. i was install Xarchiver and p7zip-full but still can not open 7z archive.. i try type on terminal: $7z
and got error like this
/usr/bin/7z: line:2 /home/slitaz/cooking/wok/p7zip-full/p7zip-full-9.20/_pkg/usr/lib/p7zip/7z not found