Utility can make files and folders invisible. Funk Monkey is a handy little utility that allows you to make files or folders invisible on the Macintosh. You can also show hidden files, copy files, or delete files. The copy function is handy if you ever need to copy those invisible files from a CD. Funk Monkey is easy to use, and allows you to select multiple files at once. It can be used to help hide files or folders from prying eyes.