When emailing file-package documents from UIDocumentBrowserViewController, the file packages are zipped, but no zip extension is added to the document when attached. Thus the recipient (typically the macOS version of our app) doesn't know what to do with the file. There doesn't seem to be a way of intercepting the documents before sharing to add .zip to the name.
How is this supposed to work? Is anyone else using file pacakges with UIDocumentBrowserViewController?
thanks!