Is there a way to do a multi-line cell? I know that org.apache.poi.ss.user

Is there a way to do a multi-line cell? I know that org.apache.poi.ss.usermodel.CellStyle supports wrapping via setWrapText(boolean wrapped), but I don’t know how to access the cell style from my code. The only thing I can think of is extending ExcelFileBuilder and overriding buildColumnHeaderCell(String header), but I wanted to make sure I am not missing a simpler solution. Currently I am working with the Vaadin 7 version.

Nope, sorry no support for that. For the Vaadin 8 and Vaadin 10+ versions, I will add more ExporterOptions for configuration. I will keep in mind to add this wrap text there. Thanks for the feedback.