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 ...

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 ...

When you double-click on a file in Windows, it will automatically open a default program that is configured to manage these types of files. It is common, though, want or need to use a different ...

The problem can occur when the Word file you are trying to open has a different file extension than the file you are attaching. It happens when you manually convert the file. There can be other ...

Red Eye Rose received a file with a strange extension. She doesn’t know into what program she should load it. Neither does Windows. I doubt that anyone knows all of the file extensions used since 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 ...

Dylan Turck is a PC hardware, software, and gaming reporter who loves writing how-to guides and in-depth features on the latest tech products. When he's not shocking himself by pulling electronics ...

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, to ...

Windows programs have unique "Process IDs." Windows identifies all processes using this ID. Microsoft Winform developers often need to allow users to open files such as Word documents, images and even ...

Each document that you have on your Mac is associated with a default application which macOS uses to open the file whenever you double-click on its icon in Finder. Sometimes you may have a legitimate ...

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 ...