I am creating a Creator app to replace an existing on (built in knack) however I have a lot of documents stored on the old app that I need to move to Creator.

The documents are stored as a url and I have exported that as a new field - but I would like to actually download the file from knack and upload to a file upload field in Creator. in the (redacted for security) example below I would want to access each of the file urls in turn and upload into the field "Signed Contract File"