Do the following:

    for i in `ls -R Swedish-*`; do iconv -f ISO-8859-1 -t UTF8 $i -o UTF8-$i; done
followed by:
    mkdir utf8
    cp UTF-8* utf8
And then
    cd utf8
    for file in UTF8-*; do mv "$file" "${file:5}"; done
And finally
    for i in *; do  sed -i '1s/^/$self{charset} = \x27UTF-8\x27; \n/' $i; done