Can a UWP App access data outside its own app data, publisher data, or what the user picks with the FilePicker?
As far as I can tell, a shared publisher area and a user prompt with the FilePicker are the only ways to access files outside a UWP app's own personal app data stores. Registry settings are sandbox'd, as are environment variables.
I'd like to pass data from one UWP app to another as plain-text non-executing and read-only if it's possible, but it doesn't seem like it is so far from my research. Have I missed anything?