Maruo editor - Version 3.01 Designed not only for editing simple text files but also for programming. It works as a Windows application although it is designed for those who have been using DOS editors. You can use it to edit files with up to 10 million lines. Maruo Editor features system-tray support, various utilities for C & C++ programmers, powerful macro support with C-style syntax, and much more. Online help is included.