file extensions

The bit after the dot in a filename. Most modern computers hide this by default, and you have to switch[1] it on to see it. The file extension tells you what kind of file it is, some common ones include “.docx” for document files from Microsoft Word, “.jpg” for image files etc

Terms definitions
1. switch. A control mechanism in which the value of a variable or expression changes the execution of a program and which usually involves multiple branches. Related Articles: Changing default apps in Windows 10« Back to Glossary Index