Hi Imre
Is it existing report that was ok before upgrading servoy jasper plugin or new report?
you can try to add this property in your jasper report
net.sf.jasperreports.export.xls.white.page.background=false if it produce any difference
this page is very useful when your create jasper reports dedicated to exporting to excel
http://community.jaspersoft.com/wiki/tips-exporting-exceledit: I just checked on existing report that add same beahaviour than yours adding this property solve the problem
If the same report has different exel output depending on the plugins version, it should be a change in the jasper library because Servoy don't touch any of this properties in the plugin (as far as i know)
According to the servoy jasper plugin doc:
// Pass exporter parameters to the export process in runReport
//var params = new Object();
//params["EXPORTER_PARAMETER:net.sf.jasperreports.engine.export.JRPdfExporterParameter.METADATA_TITLE"] = "Test title";
//params["EXPORTER_PARAMETER:net.sf.jasperreports.engine.export.JRPdfExporterParameter.METADATA_AUTHOR" ] = "Test Author";
//var r = plugins.jasperPluginRMI.runReport("myServer","someReport.jrxml","path/to/someReportExported.pdf",OUTPUT_FORMAT.PDF,params);
so your solution:Change your servoy code adding this line in your excel export call params["EXPORTER_PARAMETER:net.sf.jasperreports.export.xls.white.page.background"] = 'false';
OR Add the property in all your report that could your be exportednet.sf.jasperreports.export.xls.white.page.background = false