With the file extension CFC so-called Coldfusion Components are marked. ColdFusion is a development and server environment for building web applications.
Adobe Coldfusion provides developers with a variety of features and tags, including database queries, image manipulation and math operation, and formatting capabilities. Coldfusion Server is few because of Adobe's proprietary license. With Railo there is also an open source server, which does not support all features and tags of Coldfusion.
CFC files are components written in the CFML (ColdFusion Markup Language) and are used primarily for common tasks such as querying and manipulating data. Components always begin with the keyword <cfcomponent> and are typically called from ColdFusion script files (cfm extensions).
CFC files are just text files that can be processed by a ColdFusion server. They can be opened and edited in any text editor, however it is recommended to use editors with developer functions such as syntax highlighting for easier work.
The IDE Eclipse needs the extension CFEclipse to work with these files.
Most often resolving problems with opening CFC files is very simple. Just install an appropriate program that supports such files. All of the listed programs support CFC files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of CFC files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate CFC files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Adobe ColdFusion applications is not on the list, select "Browse" option in order to manually locate the directory where Adobe ColdFusion has been installed.
Sometimes problems with opening CFC files may not lie with the application itself, but can arise due to other causes, such as: