To export multiple Roast Profiles at once, go to the Profiles page on the RoastPATH Portal.
Select the profiles you wish to export. Then with the profiles selected, click the 3 dots button located under "Import Roast" and to the right of "Curve Compare".
In the dropdown find .rpath under "Export Review". This will download a zip folder containing .rpath files of all the selected Roasts.