Here are the steps in order to translate an American CSV to an EU CSV.
Open a blank file on Excel.
The go on Data>Get External Data>Import text files
Then select Delimited and click on next
Then Select Semi Colon if you want to translate a CSV from US to EU and Comma if you want to translate a file from EU to US.
Then click on Finish
In order to be able to upload your products you will need to convert your comma (,) on the decimals to dot (.)
Press Control and F, click on Replace
On Find what, put comma, on replace with, enter dot.
Last step is to change the SKU from General to Numbers
Your products are now ready to be uploaded