Pink problem: Yes the CSV export preserves the html tags, but what to do. CSV files are plain text with 8 bit characters. Unicode characgers have to be represented with more than one byte. So either HTML encoding or some special escape sequence encoding. If you like the second better than the first, I'm sure you find some conversion program on the internet.

Orange problem: No clue how C is converted to E. Maybe depends on the encoding of your browser? There is a elog option "charset = xxx" with which you can play.