FileProInfo - It's All About Files, Software, Online Tools - 100% Free
Chocolatey - The sane way to manage software on Windows.
File-Extensions.org - Large computer file extension library with detailed explanation of each file type with links to download free or associated software programs.
Scoop - A command-line installer for Windows
FileInfo.com - FileInfo is the central file extensions registry and contains a database of over 10,000 file types.
Ninite - Ninite is the easiest way to install software.