Where is progress file stored?

[diehardsam]

I want to backup it.
Just now start the game, it show error in getting my progress file. Lucky I able to quite the game then run again it got my progress back.
So I want to copy that file and backup it.
Anyone know where is it?

[Danieros]

This game uses Steam Cloud as shown on its Store Page. No save data is stored on our computers, instead it is on the Steam servers.

[Protoss]

There is a save file on your Steam directory, on: userdata/[some number]/48950

[diehardsam]

ok thanks