How to open a file with .KEY extension?

File Type : OS/2 Archive .KEY-file
Compatible with (Win10, Win8, Win7, Vista and WinXP)

You'll need a new app to open this .KEY file

Searching for the right program to open .KEY files?

"You'll need a new app to open this file" is probably the most common error faced by millions of Windows users every day. This is either because the program required to open a file is not available on your system or there may be other issues.


What is .KEY file extension?

Generic file extension used by various programs when registering legal copies of the software; may be saved in a plain text format but generally contains some form of encrypted key string that authenticates the purchase and registers the software. Since KEY files are used by various software products, no single program will be able to open them. Instead, you will have to know which program a KEY file corresponds to in order to use it to register the software.
You can see a list of software programs here on www.easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.

Software that can be used to open KEYfiles:

  • Used by various programs