N Docs allow you view create and edit documents on Android. No internet connection is required.

* App size

- 10 MB


* View file types :

- Microsoft Word(DOC/DOCX don't support password protected file)
- Microsoft Excel(XLS/XLSX don't support password protected file)
- Microsoft PowerPoint(PPT/PPTX don't support password protected file)

- Open/Libre Writer(Open with thirdparty app)
- Open/Libre Calc(Open with thirdparty app)
- Open/Libre Impress(Open with thirdparty app)

- Hancom Hanword(Open with thirdparty app)
- Hancom Hancell(Open with thirdparty app)
- Hancom Hanshow(Open with thirdparty app)

- Portable Document Format(PDF support password protected file)
- RTF
- TXT
- MARKUP(MD/HTML/XHTML/XML/DTD/XSL/XSLT...)
- CODE(JAVA/CPP/PHP...)
- EBOOK(EPUB)
...

* Create file types :
- PDF
- TXT
- HTML
...

* Edit file types :
- TXT
- MARKUP(MD/HTML/XHTML/XML/DTD/XSL/XSLT...)
- CODE(JAVA/CPP/PHP...)
...

* Storage services :
- Google Drive
- Microsoft One Drive