Extra_english.lang problem.

[Your Computer]

There doesn't seem to be anything wrong with the syntax of the extra_english.lang file. However, it does imply that you don't understand how to make notes and inventory item information work. Inventory item entry names don't have suffixes like _Name or _Text, and note entry names don't have prefixes like ItemName_. Also, inventory item entry names for item descriptions don't have prefixes like ItemName_.