When I add a new Reader, e.g., Excel, select a file, and then open the 'parameters' dialog, there's a summary showing 1. Sheets to Read, 2. Preview (of selected sheet), and 3. Attributes (of selected sheet). I want to replicate that in a workflow... how to do it?
I just want to know how to get this information from the file, I don't need to know how to format it and all that.