If you are using a version up the 1.5 you could find in System -> Import/Export -> Dataflow Profiles the way to personalize your output.
You can select one of the predefined profiles to help you get started.
In first place I recommend you to use the Excel XML export format instead of CSV, that's simplify the commas o semicolon you could have in your content (in File Information).
You can select the attributes you want to add to your output file in the
Data Format section. Under the "Export" option change the "All fields" to "Only mapped fields", after that yo can select which fields you want to include in your file.