In reply to Junyong Kim.

A tar file is a bundling of files, but not compressed. The gzip action compresses this single bundle. So in concept, tar plus gzip is like creating a zip file, which is an archive of compressed files.

But zip is not the same as tar or tar.gz, so the FILENAME ZIP method can't uncompress these. I think you'll have to use the operating system untar command to do that. I'm not aware of any SAS function or method to perform that step.