I don't think bars are a thing in EE. Stuff is already decompressed.
The proto2.8.xml is in data folder. I suggest you make a mod, in mods folder, with a data folder and proto2.8.xml and edit that one. Or at least a backup.
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Skyrim... the greatest game ever... without considering Age of Mythology, of course!
Ctrl...Alt...Q...
and Brisingr-know these three things and your task here is accomplished...