yes, i'd like to apply this to all remote users.
Note: the users ONLY use Excel as a published remote app and its the Office/Excel date format that is in US when we'd like it to be UK.
Yes, i have changed as admin on the RDS server both the server time/date/regional settings and also Office Language settings.
I'd like the GPO to apply to ALL & ANYONE who logs onto the server or uses the remote app Excel.