ACAT – All Creatures Are Traitors – an April Fool's mod from 2022.

Yeah, I just need to remove the Energy Rune. This rune negates the only weakness of the Dwarves (their speed), and they are already strong.

Added 1 hour 35 minutes ago
I found the characteristics, edited them, and when I click save, it asks me to save it to which folder, I don't understand how to save the modified data.

In general, I'll chime in. You need to create an exact copy of the folder structure and place the corrected file in it, and then pack it. The easiest way is: copy the file from the archive to a convenient location, edit it, then create the folder structure (pay close attention to the names and nesting), and pack it. Important: it's better to pack it using 7zip, in WinRAR you need to choose settings for it to work, but I don't remember which ones.