enca binary package in Ubuntu Focal s390x

 Enca is an Extremely Naive Charset Analyser. It detects the character set and
 the encoding of text files and can also convert them to other encodings using
 either a built-in converter or external libraries and tools like libiconv,
 librecode, or cstocs.
 .
 Currently it supports Belarusian, Bulgarian, Croatian, Czech,
 Estonian, Hungarian, Latvian, Lithuanian, Polish, Russian, Slovak,
 Slovene, Ukrainian, Chinese, and some multibyte encodings independently
 on language.

Source package