.CHA File Extension

Settings file used by IRC clients such as Ircle and mIRC; stores the required information for opening an IRC channel; includes the server, port, channel name, and potentially a password; automatically opens the channel when double-clicked.

NOTE: URLs that end in ".cha" may open a chat program from a Web browser.

Custom color channel mixture that can be applied to a Photoshop image file; modifies the intensity of the source channels, such as red, green, and blue, and applies them to an output channel.

Channel mixture presets can be loaded and saved by selecting "Image→Adjustments→Channel Mixer" from the Photoshop menu bar.

Contains character layout information for a certain font; describes how the characters are positioned and defines the kerning between each character.

CHA files can be opened and edited with DTL (Dutch Type Library) FontMaster software.