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