I've had a look through on Splunk on this matter and couldn't find anything definitive. Im trying to export my results in a csv format. At the moment, I'm only able to export in PDF format. Ideally, I'd like to achieve this without having to go through the back end, but If I need to I will.
in search dashboard see on the right high part of screen the button with a down arrow (with tooltips "Export").
in a dashboard panel see the same button on the left bottom of each panel.
Remember that if you use Post Process Search, this button is disabled in panels, to export in csv you have to open search panel in search Dashboard and push export.