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

Need to look at invisible files and show hidden file extensions in Windows? Here's how to reveal them.

How to Open Unrecognized File Extensions. In most cases, the majority of the file extensions you encounter on your computer are already associated with a program or protocol. When a file extension ...

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 ...

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

How to Open MOD & MOI Files. Every program uses and, in some cases, produces files with a specific file extension. A file can only be opened by a program with support for its particular extension ...

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 ...

Learn how to rename all file extensions in a folder & sub-folders at once on Windows 11/10. You can batch rename or rename all file extensions in bulk using this guide.

These techniques—editing file extensions, changing formats, and trying different apps—will only get you so far. In order to rescue truly corrupted files, you’ll need a dedicated repair tool.