These are standard multi-byte character sets. These are special approaches for handling more than the standard 256 ASCII prior to the development of Unicode data.
They normally represent any of the standard characters in one byte, but represent any of the native characters as two bytes. Any field might contain any mixture of single or double byte characters. Technically these are just ASCII, but with a special font. As long as the correct font is installed on the local machine, Analyzer can process this data.