On computers and mobile devices, file extensions are the suffixes that apps append to filenames. When you see an item like "document.docx" for example, the .docx extension tells the computer and ...

New installations of Windows default to hiding the file extension when file names appear in Explorer windows and Open/Save dialog boxes in applications. However, this important element of the file ...

Sometimes when you share a webpage link with someone, you just want to bring their attention to a specific passage or sentence to make your point, rather than have them read through the entire ...