There are two basic types of mime—literal and abstract. Literal mime is the best-known form. It tells a story, usually humorous, in such a way that the audience knows exactly how to interpret the plot. In abstract mime there often is no plot at all.

Use "application/octet-stream" for the "All files (*)" filter, since that is the base MIME type for all files.

MIME types enable browsers to recognize the filetype of a file which has been sent via HTTP by the webserver. As a result the browser is able to choose a suitable displaying method. Common MIME types are for example text/html for html-files or image/jpeg for jpeg-files.