iOS strings encoding problem in SDL Trados Studio 2015

I am testing the translation process of iOs strings in SDL Trados Studio 2015 and have noticed that the strings imported into Studio are not UTF8. 


Here is what I did: 

- I took the Italian iOs *.strings file I received from the programmer (and which is in UTF8) and

- created a new file type following these instructions: http://producthelp.sdl.com/kb/Articles/4908.html

- The imported strings are all showing in the Editor, but the coding is wrong: "è" instead of "è" etc.

 

Any workarounds or ideas welcome! ;-)

Sabina