Have you ever noticed how your computer knows which program to open when you double click on a file? It doesn’t always know but most of the time it does. When it doesn’t know, your ...

I have tried it on Microsoft Word, Microsoft Excel, and Microsoft Paint; and I was able to save the file with no extension. Read: How to batch rename files and file extensions. How do I save a ...

In the case where all the file extensions have changed to some unknown ... Once done, you can proceed as follows: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts ...