Excel .CSV File UTF -8 Encoding not working

Question

I've got an application that exports a .CSV file with many data, however every time where there is an accent, the files changes the letter to $#231;,

Already converted the file and the text to UTF-8 and it does not fix the problem

Tried the conversion with Excel and also Open Office without success.

Does anybody have any idea how to fix this issue ?

Follow an example of wrong data extracted (the text is in Brazilian language):

Lol, after i paste the wrong data in the StackOverflow text to post, the data convert to the correct data.

Anybody has any idea ?

Data Conversion Correctly