KOI8-CS
From Just Solve the File Format Problem
KOI8-CS (ČSN 369103) is an 8-bit character encoding intended for use in (the former) Czechoslovakia, encoding characters used in the Czech and Slovak languages. It dates to that country's Communist era when it was allied with the Soviet Union, where the KOI8 family of encodings originated. As with the other encodings in that series, it is designed to maximize legibility if the 8th bit is stripped, by placing characters in the upper half so they line up with similar characters in ASCII, such as accented letters with their unaccented version. This is one of the few KOI8 encodings not oriented to the Cyrillic alphabet, and did not get much use.
