Looking for accessible word document for students

iOS and iPadOS

I am looking for an accessible word document that works well with a refreshable braille display. I specifically want students to be able to open homework assignments and have those homework assignments maintain the correct formatting. Pages used to be the preferred app; however, recently Pages has had many broken RBD commands. In iOS 8.3 more commands were broken (including using the router buttons to move the braille cursor, typing certain words causes the first letter of the word to end up after the word - example "love" becomes "ove l") Notes, VoiceDream Writer, and other apps are wonderful apps that work well with the refreshable braille display to read and write documents; however, students cannot open documents in these apps. Students need the formatting to stay the same as the original document. Any suggestions for a good app that meets these needs?