It's not all that easy to "unhide" the other languages in my editor since it doesn't actually parse them at all.
Many of teh default languages are written using a version of international Unicode where a single character takes up two bytes of data instead of the usual one byte.
Supporting that is extremely difficult in VBA since the default Microsoft code base seems to just want to ignore them and treat everything as a one byte character. That's why you typically get gibberish in the cells when it's trying to read in standard Korean, Japanese or Chinese.
It's a serious pain in the butt which I eventually just sidestepped by just storing the numerical values for all non-English languages in memory without even attempting to decode them. That way we don't actually lose the data like some editors do but unfortunately you can't edit it either unless you painstakingly enter all the unicode values one by one into the cells.