Convert multiple HTML files from "windows-1250" to "UTF-8" at once in Notepad++ 6.8.1

[IvanCindric]

1. Is possible convert multiple HTML files from “windows-1250” to “UTF-8” at once in Notepad++
2. Is possible Search string in files -> Find/Replace in files, to multiple HTML files in folders and subfolders from Notepad++

Thanks advance