Hi Scott
You cannot access this file locally. The apm/info is like accessing webservices. So, like the /ws/ or /ws-doc/. You need to add the request handlers to your webserver to be able to access the url.
See the APM2 installation guide (4 Security):
https://docs.mendix.com/apm/installation-guide/ig-2/installation-2
All information about request handlers and Mendix:
https://www.mendix.com/blog/requesthandlers-at-your-service/