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