We provide vocabulary lists for all our exposure lessons and Vocab Sets. We use the CSV format as it's generally speaking a much simpler and more widely supported format.
However, it seems some Excel configurations decode the CSV file in such a way that you end up with weird characters, instead of the Special Portuguese characters you should be seeing.
There are two simple ways of fixing this.
Option 1
Simply use a free online CSV to EXCEL converter such as this one.
Option 2
Use another free spreadsheet software such as Google Docs. From there, you can also export the file to xlsx format (default Excel format).