Codolex projects have the file extension .fcp. In the location where you save the Codolex project file, a new folder with the prefix .fc will be created. This folder contains all the module and flow files. Make sure you add all the files below the new .fc folder, as they contain the logic of Codolex.
The generated source code will be stored in a new folder named .fsrc. It is a good idea to add this folder to your code repository too, as this makes it easier to compare source code updates. Do not make any manual changes to the generated files as your changes will be overwritten if you compile your Delphi project.