Here are some examples of different file types. Don’t worry about remembering all of these.

.doc or .docx files are Microsoft Word documents.

.mp3 files play sound or music. This is why we used to call music devices “MP3 players”.

.exe files are apps. Most pieces of software on your computer will end in .exe.

There are so many file extensions out there that it would be impossible to list them all.

However, there is one extension that everyone should know.