workshop files can be found in steam/steamapps/workshop/content you need to find the workshop id of the addons you want to add to your server. the id will be in the workshop url for the specific addon. if the files aren't in the correct format to host on your server create a new folder on your desktop or wherever doesn't really matter. download a gmad extractor and drag it into the folder.How to download things from Steam Workshop?
- If you’re on the Start Screen select ‘Downloads’ - Select Steam Workshop tab - Select ‘Download Add-Ons directly from Steam’ - This will bring up the Steam overlay for the Football Manager 2020 Workshop. - Select an item or collection in the workshop - Click ‘Subscribe’ - Steam will now download the file in the background