What is an extension of the file name?

The

file name extension is part of a computer file that is traditionally used to indicate a file type and potential programs that can be used to open or start this file. The system used to extend files usually depends on the operating system (OS) that the person uses, and some types of OS do not use extension to file names at all. Extensions are usually identified as the last part of the file name and are usually separated from the file name by a dot. Extension of the file name is commonly short, often only three letters and is often used as a name to refer to a specific type of file.

Sometimes it also calls the file type, OS usually uses a file name for correct recognition of different file types. This has been done solely in certain types of axes in the past, although newer axes species often have the ability to recognize different files through the data included in the file itself. Newer axes types will still often use a file nameHowever, a heating for computer files ensures backward compatibility and remain known for older computer users. However, these systems are sometimes unnecessary and the file name can be extended potentially for harmful reasons.

One of the most common forms of file name extension was the system often referred to as "8.3" or "Basename.ext". Older types of computer operating system would often allow only a maximum of eight characters for the file name, followed by an extension of three characters. This is the name of the name 8.3, as well as the name "Basename.ext", which contains the basic name of only eight characters and ".EXT", which indicates an extension of three characters. There are many different popular and common types of file name extensions such as ".txt" for text files, ".jpg" for JPEG or image files and ".mp3" for MPEG versions of three files.

Some types do not require file name file and often iIt dentizes files according to data included elsewhere in the file. There are also extensions of different sizes, such as ".html" for Hypertext Markup Language (HTML) files. Modern systems usually allow users to indicate what program is used to open certain files, both as default and when selecting when opening a file.

Some types of programs have hidden extensions from users, so a virus called "Basename.txt.exe" could be created and only "basene.txt" is displayed. For users, this would seem like a harmless text file, while in fact it would be a executable file that could install a virus on the system. To prevent this, most programs display the file name by default or allow users to display it if desired.