When you double-click on a file in Windows XP, the operating system will automatically open the file using a program that has been is associated with the file's extension. It is possible, though ...

When you double-click on a file in Windows 8, Windows will automatically open that file using a program that has been associated with that file's extension. There may come a time, though, that ...

Learn how to hide or show file extensions in Windows 11/10 File Explorer via Folder Options, Registry, Group Policy or CMD. It is better to set Windows to show them.

Need to use third-party programs to open files on your PC? Here's how to change file associations in Windows 10 and choose which apps open which file types.