and other times open it in another. He asked the Answer Line forum for an easy way to do this. Windows uses a file’s extension–the part of the file name after the period–to identify what ...

Just enter the extension in the field in the upper-right corner, and press ENTER. That’s actually how I found the solution to Rose’s problem. She needed to open a .3de file, and a Google ...

When you see an item like "document.docx" for example, the .docx extension tells the computer and the user what the file is and what to open it with. Some users don't feel the need to see the ...