For the game to "see" the custom squads, the file must be in your local FIFA documents folder.
You must manually tell the game to use this new file instead of the default EA squads. : Start FIFA/FC as you normally would. Download File Squad FIle For FIFER.rar
: From the main menu, go to Customize > Profile . For the game to "see" the custom squads,
: Navigate to FIFA [Year] (e.g., FIFA 23 or FC 25 ) and then open the settings folder. Download File Squad FIle For FIFER.rar