It contains the executable and base files needed to run the chart editor. Installation:
EOF is a popular open-source tool used to create custom charts (songs) for rhythm games like Rocksmith , Guitar Hero , and Phase Shift . Key Details for Users: rc12.zip
Check for any files released after RC12. These are usually smaller zip files whose contents should be extracted directly into your main EOF folder, overwriting the old files. It contains the executable and base files needed
Are you trying to for a specific game, or did you encounter an error while extracting the file? How to create and implement custom songs - Steam Community rc12.zip