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.

Need to use third-party programs to open files on your PC? Here's how to change file associations in Windows 10 and choose which apps open which file types.

The default setting for Windows is to not display a file's extension. Therefore, when viewing files in Windows you would only see the portion of the filename that precedes the last period in ...

When it comes to converting file extensions on your iPhone, don't worry about downloading a third-party app when you can make the changes yourself.

In the Mac OS it is possible to change the default program the operating system will use to open a file when you double-click on it. After you have changed this file association, though, you may ...