By default, all software supports multiple file extensions. Model Builder supports at least 1 different file extensions. The basic files that Model Builder supports are .MB4. However, not all of the extensions listed on the list are always used to save the effects of work in Model Builder. Very often, files with such extensions are used as source data files used by Model Builder.
Model 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 Model Builder and try to save it in another file format, also supported by Model Builder.