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.

First, open File Explorer in Windows 10 and right-click on any image—JPG, PNG, TIF, GIF, etc. Notice that there’s no option in the popup menu to preview the file without having to open it or ...

How to Open a PNG File The default photo viewer program in Windows opens PNG files, but there are many other ways to view one.