Write unicode strings to a file in Matlab

Question

I have a string containing urdu characters like 'بجلی' this is a 1x4 array. I want to save this to a file, which would be viewed externally. Although this string doesnt display in the main Command Window, but variable 'str' does hold it. When I save this using fprintf(fid, str), and open that file in notepad there appear 'arrows' instead on the original characters. I can easily paste my characters into notepad manually. Where is the problem?