Removing file(s)/folder(s) can be done either via clicking in the list view or the tree view. There are only seven (7) formats though that can be edited: the zip format (.zip), the 7zip format (.7z), the Tar format (.tar), the TarGz format (.tar.gz/.tgz), the Wim format (.wim), the Arj format (.arj) and the Lha format (.lzh)

Note: Removing all file(s) and/or folder(s) in .arj and .lzh formats makes the archive invalid and removes the archive itself.