Thanks Nicolas, seems like we arrived to the same results and fixes on our tests
https://bitbucket.org/idempiere/idempiere/changeset/ce02e7c75003

Hi,

I've tested it and works well.

Maybe 2 things that can be enhanced :

1 - you can't export if fields document are empty.
IMHO, the export button should be visible since you're on the Result tab.
To reproduce, launch Account Info and select fact (leaving 'Select Document' unticked)

Thus,
bExport.setVisible(visible); (line 713)
should be :
bExport.setVisible(tabResult.isSelected());

2 - the extension of the generated file is xsl ; but if think that most of users are not familiar with.
Would it be possible to customize the extension (so it could be xls ; like in swing) ?

Thanks & Regards,

Nicolas

Zk Web Client: https://bitbucket.org/idempiere/idempiere/changeset/7e178f90b076/