Yes - uploaded files can be exported in bulk, into a zipped file. 

To export files from the study:

1. Navigate to the Participants tab.
2. Click the 'Export' button. 
3. Choose 'Export all' to export files from all participants. If you are exporting only selected participants, first select the participants of interest and then click Export and 'Selected Participants'. From the 'Export Type' dropdown, select 'Uploaded files (to zip-file)'.

Each upload field has a separate folder, containing the files uploaded to the field. The participant ID is added as a prefix to each file name.