Hello. If there is a mix of UTF-8 with non UTF-8 chars, pspad should ask you, if you want to open it as utf-8. Selecting UTF-8 and reopening should force PSPad open your file with UTF-8 encoding.
PSPad (editor component) has problem with long lines. It slows it down -- <https://forum.pspad.com/read.php?2,76485,77604> PSPad freeware editor https://www.pspad.com
