When webform results have multiple files attached, it's cumbersome and time consuming to try and download all attached files even when using table view. Since results can be downloaded, it would be nice to also include all attached files in the export. We propose an archive option in the download tab. This will create a zip file that includes the exported CSV/TSV and any attached files.
We've implemented this functionality in the attached patch which can be applied against git branch 6.x-3.x (6.x-3.9). We would like to help get this into the next 6.x-3.x release if possible.