Microsoft uses file associations to set default programs for opening different file types on all its operating systems. As a result, when you open a file, be it text, image, or document, on your ...

If you cannot associate a file extension to an application in Windows 11/10, and see an error message The program you selected cannot be associated with this file ...

Every file that we have saved on our computers has a particular extension. The file extension is added at the end of the filename followed by a dot (.). It tells the operating systems about the ...

When you open certain file types in Windows 7 or Vista, such as an Outlook email attachment, Windows displays a warning message about opening a file from an untrusted source. If you trust the sender ...

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 you ...

The latest issues of the MDJ explore a continuing controversy with Mac OS X. While not a new controversy, a new feature in Mac OS X 10.1 brings it to the foreground again. The articles are too long to ...

How to add a new file type to the Microsoft Windows 10 Context Menu Your email has been sent You can add a new file type to the New item section of the Windows 10 Context Menu, but you will have to ...

For most people, April 15 is the final day to request a six-month tax extension using Form 4868. Here's where and how to file one. Many, or all, of the products featured on this page are from our ...

Have you ever tried to open a file in Windows 11, only for the completely wrong application to fire up and start loading it? That’s pretty frustrating, right? Well fortunately, there’s a cool little ...