Hi, I am using below code to convert .brl to .drl. but i do not know that how it will put import statement and package name in our new .drl file which we define in rule.package file. which will be input for processing all rules. Below is my code snippet. String fileName = "SampleTest.brl"; File file = new File(fileName); String fileAsString=""; fileAsString = FileUtils.readFileToString(file); BRXMLPersistence read = (BRXMLPersistence) BRXMLPersistence.getInstance(); BRDRLPersistence write = (BRDRLPersistence) BRDRLPersistence.getInstance(); String outputDRL = write.marshal(read.unmarshal(fileAsString)); System.out.println(outputDRL); String packagefile = resolvePackageFile(); final PackageBuilder builder = new PackageBuilder(); try { builder.addPackageFromDrl( new StringReader(packagefile),new StringReader(fileName)); } catch (DroolsParserException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } I have below questions. 1) can we just write single rule using GUI Editor?(once it convert into .brl file ) or we can write multiple rules in same file using brl. 2) How can we get actual .brl file from .drl file ( as it should have import, package and lots of rules). what is the procedure to achieve this. Please reply so we can get real usage of Drool GUI Rule plug-in. Regards, Jigar -- View this message in context: http://www.nabble.com/issue-with-.drl-file-to-.brl-file-conversion-tp1868... Sent from the drools - user mailing list archive at Nabble.com.