There is something at the very end of those csv files that Adagio doesn't like. Go to the rightmost place in the last line in the csv file and make sure that there are no invisible (e.g. CRLF) characters following your last data element. Using the backspace or delete will clear anything that you cannot see. Then re-save the file and try importing. If this does not work, go back to the same place at the very end of your file and hit Enter once immediately after your last bit of data. Re-save and import.

Works for me. Let us know if it works for you.