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File Name Extensions : A filename extension is a suffix added to the name of a computer file at end point. It is called an extension because it appears at the end of the file name. A file name extension is a set of letters / characters which will helps Windows to understand what kind of information is in a file and what program should use to open the file.

Examples of computer filename extensions are .png, .jpeg, .exe, .dmg and .txt.

In the file name myfile.txt, the extension is txt. It tells Windows that this is a text file that can be opened by programs associated with that extension, such as WordPad or Notepad.

Here in this article we are providing the information regarding the topic names as “File Name Extensions” / Computer Extensions For Windows. In competitive bank exams the question will be asked from this topic in Computer Awareness section or General Awareness section.