Rich brought my attention to the word: "convert text to UTF8".
To me, it is some indication of the fact that you need to get some understanding on how Unicode works and what the UTFs are. Just a hint: many said Unicode is a 16-bit code. This is not true. Actually, the number of code points is much more than that and each and every UTF (even UTF-16 :-), what a paradox) support them all at the same time.
Therefore, it is important to get introduced to http://unicode.org/