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

Free Opener truly can open a large amount of formats, including documents, spreadsheets, presentations, PDFs, media, and code. Sadly, it can’t edit most of them.

Windows 11 can make it easier to access your extensions through apps. Here's how. Windows 11 can keep track of the apps you open and set them by default for faster navigation.

Red Eye Rose received a file with a strange extension. She doesn't know into what program she should load it. Neither does Windows.

Windows makes it easy for you to open up these files by setting up default programs for each file type -- images files, for example, will open by default in the Windows 10 Photos app.

In macOS, the Open With contextual menu that appears when you right-click (or Ctrl-click) on a file provides links to all the applications installed on your Mac that are associated with that file ...