BadZipfile "file is not a zip file"

[webcomm]

On Jan 8, 8:39 pm, "James Mills" <prolo... at shortcircuit.net.au> wrote:
> Send us a sample of this file in question...

It contains data that I can't share publicly.  I could ask the
providers of the service if they have a dummy file I could use that
doesn't contain any real data, but I don't know how responsive they'll
be.  It's an event registration service called RegOnline.