By default, all software supports multiple file extensions. Apple Interface Builder supports at least 1 different file extensions. The basic files that Apple Interface Builder supports are .IBPLUGIN. However, not all of the extensions listed on the list are always used to save the effects of work in Apple Interface Builder. Very often, files with such extensions are used as source data files used by Apple Interface Builder.
Apple Interface Builder can be used to convert file formats between the file extensions listed below. You can open a file with one of the file extensions below via Apple Interface Builder and try to save it in another file format, also supported by Apple Interface Builder.