interim solution for connecting any expo app to document editors using only phone's local file system
Click on 'Open Documents' button to load documents from phone's file system:
Click the image or text to open the document in another app
In this walkthrough Microsoft Word is the editor of choice
This makes it writeable/editable
This is a new copy of the document, so you may choose your naming conventions - either save a new version with a timestamp or override your existing file of the same name.
