http://YOUR_SERVER_URL/PATH_TO_SITE_CONTAINING_LIST/_vti_bin/owssvr.dll?Cmd=ExportList&List={YOUR_LIST_GUID}
Step 1. Install cors from NeGet Step 2. Enable cors in config using System; using System.Collections.Generic; using System.Linq; using ...
http://YOUR_SERVER_URL/PATH_TO_SITE_CONTAINING_LIST/_vti_bin/owssvr.dll?Cmd=ExportList&List={YOUR_LIST_GUID}