lebe-dev

// 1. Create text file with windows-1251 (or any other non-utf8 encoding) - source.txt

// 2. Execute that code

val sourceContent = File("source.txt").readText(Charset.forName("windows-1251"))
File("utf8.txt").writeText(String(sourceContent.toByteArray()))

// 3. Check utf8.txt file and you'll see text file with utf-8 encoding

For example sample text in russian windows-1251: а вот и текст