The Webform Batch Export module was developed to allow webform submissions to be exported in batches using Drupal's Batch API. This module depends on the Private Download module, which provides a private download directory for use when the file system is configured for public download access. You can download this module here: http://drupal.org/project/private_download The webform_batchexport module extends the webform module's user administration allowing administrators to export webform submissions in batches of 5 to 10,000. The maximum batch size may vary depending on your environment's available system resources. This functionality can be accessed from a webform results page and selecting 'Batch Export', or by visiting /node/%/webform-results/batch_export.