With real rules.
Ivory Coast FM19 database preview
How to unlock Ivory Coast leagues on FM 20191) Extract the contents of the downloaded .zip file using a free tool such as 7-zip for Windows or The Unarchiver for Mac OS.
2) Move the extracted .fmf file to your editor data folder. By default it can be found at:
/Documents/Sports Interactive/Football Manager 2019/editor data
If the last folder doesn't exist, you need to create it.
3) Open FM19 and start a new career game.
Top right area you'll see "DATABASE" in white and "19.1.0 Update" with a down arrow.
Click on that and make sure the file is ticked, then click the red Confirm button.