A file extension, or file name extension, is the letters immediately shown after the last period in a file name. For example, the file extension.txt has an extension of .txt. This extension allows the ...

A file extension is a suffix that is added to the end of a file name after a dot. It is usually two to four letters long. File extensions help Windows and other operating systems to know the standard ...

Suppose, you have a 100 .mp4 files, 150 .mkv files, 200 .png images and some other .txt and .docx files in one folder. Now, you want to organize them according to the file formats. For instance, you ...