Thank you for your advice but still not working out as hoped. We have no problem when we upload a file straight from the desktop into Download Manager, however when we move a file from the WP media library into Download manager it will then not download the file but display the content of the file. So in fact we need a forced download, not the display. I suspect we are close but we may have missed out something in the settings. The same goes for e.g. a simple JPG. It will not download, but display the picture instead. And this applies only to those files that we moved over from the WP media library….
Thank you so much for your support once again.