Q: Sometimes when I try to open a file or e-mail I get the message: "The selected file has an extension (PDF) that is not recognized by Windows Media Player but the player may be able to play it.

Jeff Werner is a software engineer and has been writing this column since 2007. Question: When I download any .pdf file it tries to open in word. I know I have some setting wrong. How do I change it?

One of the more frustrating things I experience in daily usage of my Mac is opening a file that launches an unexpected application, which can sometimes result in a failure to open the file. Joe is a ...

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 ...

We have seen how we can set or change File Associations & Extensions via the Control Panel Default Programs applet. Windows 11/10 also allows you to configure these File Associations via Settings. For ...