Template for creating a new ContentServ document; may be used by an Enterprise Marketing Management Solutions (EMMS) project for managing marketing, sales, and communication processes.

ContentServ templates include CSTags, which define content that is replaced by output from the template engine when the document is accessed.

Cast file created by Adobe Director, a movie creation program originally developed by Macromedia; stores properties for generating the video output; allows a cast to be reused for multiple videos.

CST files contain external casts, which are fully delinked from the target movie. Internal casts, on the other hand, cannot be delinked from the movie and may only be used for the movie they are linked to. Since Adobe Director has been replaced by Adobe Flash, CST files are not commonly used anymore.

Plugin file used by Gary Gadget: Building Cars, a car designing, building, and driving game for children; adds features to the game such as car parts or bonus games.

CST plugin files are available to download from the Gary Gadget: Building Cars website. When the download is complete, place the CST file(s) in the Gary Gadget\Building Cars\Plugins directory of the game installation location. If the Plugins folder doesn't exist, you will need to create it. After placing the file(s) in the folder, restart the game and the plugin(s) will be available. NOTE: The Viva Media Gary Gadget: Building Cars program is no longer available for download.

Page layout file created by Manga Studio, a program used for creating comic books; saves the storyline for the comic book and can include multiple chapters, multiple pages (.CPG files) per chapter, and layouts for each page; used for specifying the structure of the comic book.

Manga Studio became Clip Studio Paint in 2015. It is also known as ComicStudio in Japan.