I'm currently following an online MS course on the Common Data Service but have hit brick wall load data via ether CSV or EXCEL files into the Entities I've created. When I'm inthe Entity I select Get Data to open the Power Query dialog with either an Excel or CSV file the Next button never highlights.

Playing with it the Next button is dimmed when the : has a character added before it i.e. changing : to c: . The refusal to accept the letter makes typing a path such as c:\file.cvs difficult to say the least.
Has anyone else encountered this ?