kotlin-stdlib / kotlin.io.path / java.nio.file.Path / writeBytes writeBytes JVM JRE7 1.4 @ExperimentalPathApi fun Path.writeBytes( array: ByteArray, vararg options: OpenOption) Writes an array of bytes to this file. By default, the file will be overwritten if it already exists, but you can control this behavior with options. Parameters array - byte array to write into this file. options - options to determine how the file is opened.