| When trying to do a getFeature-request (GeoServer 2.15.0) with the „excel2007“-outputformat, you get this exception (the „excel“-outputformat works fine): Caused by: java.lang.ClassNotFoundException: org.apache.commons.compress.archivers.zip.ZipFile at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1285) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119) It seems that the „commons-compress“-library is missing. After downloading it (from https://commons.apache.org/proper/commons-compress/download_compress.cgi) and adding it to the „WEB-INF\lib“-folder, it is working. Maybe you have to add the dependency to the Excel WFS Output Format-extension. https://github.com/geoserver/geoserver/blob/master/src/release/ext-excel.xml |