Gsplit CSV with header but no EOL added

Figured how to add a header per split file but its not adding an EOL end of header, so 1st record of data is on next line of text/csv file instead of same line as header.

Do I need to edit this “0x0D0x0A” to something else and if so, to what if someone could help?

Thanks

Then, try to just add 0x0D0x0A to the end of the header?