setRowExcellType and setCellExcellType do not work properly

if you have a column for example of type dhxCalendar, you cannot set a text in a specific cell of that column, allthough this cell was prepared with setCellExcellType(‘ro’) . The statement mycell.setValue(‘some text’) shows nothing.

Unfortunately the issue cannot be reproduced locally.
setValue() method works well for us.
If the problem still occurs for you, please, provide with any kind of sample of your code.