As part of a student project we developed a small component to export (download) tabular data in the CSV format. We thought it might be useful for others and described it in the Wiki (http://wiki.apache.org/tapestry/ExportingCSVFiles). The code is also available on Tassel.
The data to export has to be passed as lists of strings. I tried to extend the export component so that it can fetch the data to export from an existing Table component on a page but this seems to be a bit difficult because the data that the table displays is only determined in the rendering process of the Table component. Martin
