We been on BC about this for a while now.
There are several issues with Data and when you export at the moment.
Attributes should not allow a set of characters etc for one example BUT the admin is currently allowing you to make those in the admin. This then is incorrect in the system and as soon as you export the data will be incorrect.
From looking at the above example it has commas which is one of them, you can not use a comma in an attribute name, this will create one of the problems.
Also when text fields are marked as such on web apps (text not numbers) BC is not parsing this information properly to the CSV export and spreadsheet software can treat them as numbers.
BC have been made aware of the issues, I will direct them to this forum so they can see others have this as well and we at Pretty will try push them for a resolution but I know they are busy with the stuff they announced on the blog.