In response to expressed demand, I wrote a Windows utility that exports data from Evernote Contact notes to a CSV file.
TuskTools ContactExporter is currently available in an initial beta version; you can download the installer from here. It hasn't had very extensive testing yet, so please download it and let me know via emailing support@moreproductivenow.com how it works for you.
It was a little tricky to implement because CSV files call for a consistent field list in every row (record), whereas Evernote's Contact card format allows for a variable number of elements for certain fields (namely, for email, phone, Twitter, LinkedIn, and addresses). So I implemented the following field structure in the CSV file:
In other words, it implements the following rules:
For Email - it outputs the first two email address fields it finds in the note.
For Phone - it outputs the first two phone number fields it finds that are not labeled as Cell or Fax.
For Twitter, LinkedIn, and addresses - it outputs the first two values it finds for each of these field types.
As mentioned above, this is currently an initial beta. Once it's been sufficiently tested, I will most likely put it on the market for a nominal amount.
Also as mentioned, it's currently a Windows utility. It's possible I might expand it to other platforms; we'll see how the response goes.