Get dynamically created CSV into Container

[Fred_S]

Hi.  Im stuck.  Im trying to access a file on our Intranet that is a dynamically created CSV file.  One of our other departments programmed a database that is web based.  A visitor uses a web browser and when they click a link, the link generates a CSV file which is then download through the browser (like any other file would be).  The CSV doesn't actually exist on the server.  I know the URL, and Im trying to get the file to download and then upload the file into a container field.  Ive tried Insert From URL, but I get a connection error (the link uses https://).  Any ideas?   Ive tested with Base Elements plugin also, but Im stuck.  Any help is appreciated.