MIME stands for Multi-purpose Internet Mail Extensions.
MIME types form a standard way of classifying file types on the Internet.
Internet programs such as Web servers and browsers all have a list of MIME types, so that they can transfer files of the same type in the same way, no matter what operating system they are working in. For example, the MIME type for Microsoft Word files is application and the subtype is msword . Although there is a complete list of MIME types , it does not list the extensions associated with the files, nor a description of the file type. This means that if you want to find the MIME type for a certain kind of file, it can be difficult. Sometimes you have to look through the list and make a guess as to the MIME type of the file you are concerned with.