.CRX File

File extension crx is associated with Google Chrome, a web browser developed by Google which uses the WebKit layout engine and application framework.
The crx file contains extensions and plug-ins for Google Chrome Internet browser (skins, function extensions). The crx file format is just a variation of ZIP archive that's used by Google Chrome.

An app's crx file can be hosted on your own server or, more typically, by the Chrome Web Store.

Files with crx extension can be typically encountered as plugins/add-ons called extensions for Google Chrome based web browsers.

How to open:

The *.crx file format is associated and used by the Google Chrome Internet browser. File contains extensions for the Google Chrome.The *.crx files are basically ZIP archives with renamed file extension to crx. You can rename crx file extension back to ZIP and open the ZIP archive file in any compression utility, such as WinZip, WinRAR or PeaZip.

How to convert:

There is no way how to convert *.crx files to other formats.