Hi Andreas,
Thank you for your patience.
The another special character used in DocIO is “\v”. “\v” insert a line break in the document. Could you please find the sample from the below link.
Sample:
http://files.syncfusion.com/support/DocIO.Web/Forum/90814/SpecialCharacter.zipPlease let us know if you have any questions.
Regards,
Jafrin J