APKPure Appを使用する
EasyEdit - The best editorの旧いバージョンをダウンロードすることが可能
マルチタブ付きテキストエディタ
EasyEdit is a simple text editor with multi tab. You can easily view or edit your text from SD card or view html source code from browser. Of course, you can also use it as e-book reader to open txt novel.
It can auto-detect the encoding of text file, so you do not have to worry about garbled!