free programs to open any file extension
EditPlus 3.10
EditPlus 3.10
EditPlus is an easy to use, but powerful, text and code editor. While EditPlus handles editing of simple text files well, it's best usability comes from built in code highlighting for HTML, CSS, PHP, ASP, Perl, C/C++, Java, JavaScript and VBScript. There are also user generated syntax highlighting files for many other languages available here.
File extensions EditPlus understands