New posts in File Extension

Make and run your own file extension?

Automatically hide files with certain extension in Windows

Get Windows to treat files with the same extension differently

How can I determine file type without an extension on Windows?

File extension for Markdown files?

On Windows, what filename extensions denote an executable?

How to open nokia photo images with .nrw extension?

Hiding files of a certain extension (.pyc) from Nautilus

How to create a default association for files with no extension

Find files filtered by multiple extensions