When I preview report in xls format it works fine but after publishing on server and downloading in same format report gets curropted and not formated properly.(Report is large report with 3-4 subreports within it).
I am using Jasper studio 6.1.1.I have some NULL values in the data which is causing error "category series s null " while previewing.I want to display chart with the NULL values,how can I make it possible?