This plug looks promising
However Im getting a blank export.
I testing with a single product to create a csv for the purpose of getting headers.
I have all fields checked
All options as default
And your store exporter page in fact showing the correct amount of products which in my case today is: 1 product only - Yes I do have "products" radio button checked at the top
My wordpress installation is 3.6.1 and the site is part of a multisite