How to edit .IBI files? When i open them in notepad i see very weird things so i guess you need a special Program. But, wich one?
You can't edit them. .Ibi files are compiled scripts. You need to get the original script source. All the Raven scripts used in the original game were included in the JA editing packet, in a separate zip. If you want to edit scripts of custom maps, you need to contact the authors if the sources are not included in the pk3 (as they often aren't).