I'm using the Views Data Export module to export an Excel spreadsheet of search results from a View. The problem is that the button is still visible when the View is unfiltered, and the full export of several thousand records (on the fly) chokes the server. Is there a way -- through the Drupal admin interface, since I don't have server access -- to simply hide the "XLS" button when the full dataset is being displayed? Hiding the button when the search results are above a certain threshold count would be even better.
You have a number of options, you can apply a default views filter that is applied on page load through the view settings.