When a file extension is not associated with a program, however, you are prompted by a "How do you want to open this type of file" or "Windows can't open this file" dialog when you try to open it.

In reality, though, when you double-click on it, it would instead open in Notepad because its true, but not visible, extension is actually .txt, which corresponds to a text file.

You can create a file without a File Type Extension in Windows 11/10 by carefully following the steps laid down in this post.

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 ...

For example, if there is an incomplete file named audiofile.mp3.crdownload, you can use a part of the sound file by removing .crdownload extension and renaming it as audiofile.mp3. You can now ...

So, if that makes you furious and you are looking for a step-by-step guide to open HEIC files in Windows, then this guide is ...

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 ...

If you're an owner of both an iOS and Windows device, it's definitely handy to know how to open HEIC files on Windows. HEIC is the file format Apple uses for photos taken on iPhones and iPads ...