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.

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.

How to change the default program a file opens with in Windows 7 When you open files that have a particular file extension, Windows will look at its configuration to determine what the default ...

When you double-click a file on your Mac, the operating system will automatically open the file using the program assigned to that type of file. It is possible, though, to open the file using ...

Each category of file type has many file formats according to their compression level or other factors. The programs recognize the files by their format and open them.

10 Ways to Open .Docx Word Files When a .docx file cannot be opened by regular means (as listed below), you might need a special tool to repair Word document.