For those looking to squeeze every drop of power out of their hardware, the is an essential link in their setup. Just remember: always back up your original file before you start tweaking.

Software like Notepad++ to make editing a lot easier. The location of the savegame you want is at: C:\Users\name\AppData\LocalLow\ Steam Community Save-game editing - Europa Universalis 4 Wiki

Ad-blockers or script-blockers can sometimes mistake the "ActiveSav" command for a tracking script. Try whitelisting your CMS domain.