Linking to Tableau visualizations through a URL can be very useful. This includes links to download Tableau Public workbooks, create PDFs or PNG images and even download sheets as CSV files. For example, Andy Kriebel has a blog post entitled The Greatest Tableau Tip EVER: Exporting CSV made simple! where he outlines how to set up an icon in your Tableau workbook to export a custom CSV. Unfortunately, this no longer works with Tableau Public and his popular workbook no longer works to download a CSV.
Here are updated URLs to download the various file formats (insert you workbook name and worksheet name in the URL below). The key is to add a parameter to the URL, "?:showVizHome=no" for PDF, PNG and CSV files on Tableau Public.
Downloading a Tableau Workbook
https://public.tableau.com/workbooks/[Workbook Name].twb (this will download the Tableau workbook if permitted)