To download multiple files from a certain file upload field or image upload field of your existing records in a sheet, you can navigate to the listing page while browsing your database, and click Tools > Export > Download as Excel File
Select Download the attachments tab. Choosing the field you want to download, for example, you would like to download all the files in the Document Review Request. This will generate a .zip file that contains all the files from the field you selected.
You can also download mapping file as a .zip file by clicking Add Mapping File and selecting the corresponding key field.