OK ladies and gents

i have a question about campaign data in warcraft 3

specifically what do i have to do to back up the data that is saved automatically as i clear chapters of the campaigns?

just in case i have issues down the line with my pc where i have to back up my data.

I think myself it's connected to the profile i created when i had the game set up but i'm not sure.

on a related topic. if the campaign data is tied to my profile. would chapter data for custom campaigns be tied to my profile too?