Where is the config (application properties) file for TimeMachine settings and the path excludes?

You know, that what you might click and add in TimeMachine Settings > Options ...

Can't find anything in ~/Library/Preferences. But settings are per user and not system-wide?!

System Command / Library seems to be named com.apple.prefs.backup


ok, found it:


They ARE saved in the Systems-Library Preferences. All user settings are entitled in this file ;/

see http://hints.macworld.com/article.php?story=2010051917410348 => http://hints.macworld.com/article.php?story=20071207104354466

P.S: According to @M-K's answer the default exclusion list is found under


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