Prevent running malicious files like document.exe which can be shown like a regular file.Below we will list some of the reasons to show file extensions. There may be different reasons to show or display file extensions in Windows operating systems. Below we will list some popular file extensions. In general 3 characters are the most popular file extension size but 4 characters can be also used for newer versions of the file extensions. File extensions are separated from the original file name with a dot. File names generally have an extension which can consist of 2,3,4 characters in order to identify the file type or content. What Is File Extensions?įiles are named in order to identify properly.

You can show/display file extensions for Windows 7, Windows 8, and Windows 10 easily with File Explorers File name extensions setting. File extensions provide information about the file content, data, and associate applications to open files. Windows operating systems like Windows XP, Windows 7, Windows 8, and Windows 10 do not show the file extensions by default.

File explorer how to view file types