Is there a app to open zix extension files in Ubuntu, can't seem to find any?
If you mean a .zix compressed file, they do seem to have a Linux version available, although from what I've read the zix software is full of adware.
If you're referring to some other extension, let us know.
UnZixWin is a free alternative in WinZix allowing to recover folders contained in an archive
Certain downloaded files (in format
On top of that, it will alert you if one of the files contained in archive is infected by one of the classical viruses which he knows.
Here is the link for downloading UnZixWin: