2. Polaris Office
Polaris Office + PDF is an excellent free Android office app with an all-in-one feature to view, edit, share, and archive all types of documents anytime and anywhere. It is capable of editing Microsoft Office file formats (DOC/DOCX, HWP, PPT/PPTX, TEXT, XLS/XLSX) and viewing PDF files. You can also cast documents, presentation, spreadsheets to a Chromecast from this app.
Install office 365: Install office
The app has a user-friendly and straightforward interface where they introduced bold, user-friendly menus that were easy to use and consistent throughout the app. It also offers its owned cloud drive (Polaris Drive) where you can sync all your documents. Also, you can even prefer your existing cloud storage providers (Google Drive, DropBox, and Amazon Cloud Drive, etc.)