.Cファイルを開くには？

C/C++main Source Code File Format

Ads	OS	Software
	WINDOWS	Microsoft Visual Studio Eclipse IDE for C/C++ Developers C++ Builder PSPad Microsoft Windows NotePad NotePad++ text editor CodeWarrior Development Studio Sublime Text
	MAC	Xcode TextEdit
	Linux	gedit GNU Emacs

Check Point Site Configuration

OS	Software

Compressed Unix File Archive

OS	Software
WINDOWS	ZipZag

Atari Lite-C Script

OS	Software
WINDOWS	Atari lite-C

AutoCAD Development System (ADS) Source Code

OS	Software
WINDOWS	AutoCAD

Origin C Program

OS	Software
WINDOWS	Origin

ANSI C Script

OS	Software
WINDOWS	NotePad++ text editor