It is unclear what you are asking for help on. A user's browser often decides where/how a file will be downloaded. Some file formats may automatically open in your browser if it recognizes the format. If you want to force the browser to always download a specific format, you might be able to use the new "webui.content_disposition_format" configuration available in DSpace 7.6 (or later):
https://github.com/DSpace/DSpace/blob/main/dspace/config/dspace.cfg#L1373 See also the PR which added this feature:
https://github.com/DSpace/DSpace/pull/8891
If that's not what you are asking, then we'd need more information about the problem you are seeing. It's not clear what you mean by "is there a way to configure downloads in DSpace 7".
Tim