Apps 
N Docs allows you to view documents on Android. No internet connection is required.
ed Android
{6.0 and UP}
ed Android Version:-
Marshmallow (6.0 – 6.0.1) – Nougat (7.0 – 7.1.1) – Oreo (8.0-8.1) – Pie (9.0)
N Docs Office PDF Text Markup Ebook Reader 5.4.9 Mod APK For Android
