This site contains a searchable database of thousands of file extensions, with information about the most common Windows applications used to open them.
OpenWith Enhanced is a small freeware application which replaces the standard Windows 'Open With...' window with an improved comprehensive yet intuitive dialog box.


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RCDefaultApp is a Mac OS X 10.2 or higher preference pane that allows a user to set the default application used for various URL schemes, file extensions, file types, MIME types, and Uniform Type Identifiers (or UTIs; MacOS 10.4 only).
Cost / License
- Free
- Proprietary
Platforms
- Mac
Do you have files on your computer that you don't know how to open? If so, you need the OpenWith.org Desktop Tool!
Cost / License
- Free
- Proprietary
Alerts
- Discontinued
Platforms
- Online
- Windows Explorer

The File-Extensions.org is a website focused on collecting of informations about file extensions and their associated programs, so it can provide you with any information you need about your files.
Cost / License
- Free
- Proprietary
Platforms
- Windows
- Online



















