How to upload a .txt file, then display the file's content?

I would like to upload a .txt file to my app, and then have the app display the content of the .txt file.

I have created the file uploader, not sure what to do after that.

Once it is saved, you can just use the dynamic expression for the link and navigate the user to that page…if you want to keep them on your app you’d want to show the link in a iFrame