E-mail messages can include attached files such as word processing documents, spreadsheets, text files, ZIP files, images, executable applications, and other types of computer files. These files exist on the sender's computer network, and included attachments show a paper clip next to the subject.
Some files, such as JPEG images or text files, can be opened on almost any computer system. Microsoft Word documents, for example, must be opened utilizing the same application, which made them. When you get a message containing file attachments, you can double click on the subject in the message header's attachments piece.
A dialog occurs asking whether you want to open or save the file first. However, sometimes it may not come through if the e-mail detects a virus or that the file will damage the user's computer.