If I download text winth cylilic WIN-1251 codepage and open it with windows NOTEPAD, it looks normally, but in "view as text" in ApexDC all cyrilic symbols replaced by spaces.
If I make cyrilic NOTE with ApexDC - in ApexDC it looks OK.
Test it with attached cyrilic 1251 and UTF-8 coded text files. test_1251.txt test_UTF_8.txt