I was directed to Zimbra when querying how I could batch download my emails from Yahoo. Was told it was the simple way to go.

But I can understand virtually nothing I've seen since, from Zimbra's web page onwards.

So I downloaded what I hoped was the free edition and got a zipped up file which I unzipped and got 14 files headed with ZCA- and followed by a swag of .vmdk files.

Now what?