Hi guys, I am converting a .brl file to a .drl file for loading to my rule base. using following code: File file = *new* File(rulesFiles); String brl = *null*; *try*{ BRXMLPersistence read = (BRXMLPersistence) BRXMLPersistence.*getInstance*(); BRDRLPersistence write = (BRDRLPersistence) BRDRLPersistence.*getInstance*(); brl = FileUtils.*readFileToString*(file); System.*out*.println("File content: " + brl); String outputDRL = write.marshal(read.unmarshal(brl)); String drlFilePath = "drlFile.drl"; File drlFile = *new* File(drlFilePath); FileUtils.*writeStringToFile*(drlFile, outputDRL); addRulesToThisPackage.addPackageFromDrl(*new* InputStreamReader(RuleRunner.*class* .getResourceAsStream(drlFilePath))); }*catch* (IOException e) { e.printStackTrace(); } I have downloaded org.apache.commons.io package from http://commons.apache.org/io/download_io.cgi site. It does not contain .jar file for org.apache.commons.io.FileUtils. But contains .java file for the same. I add it to my classpath and add import org.apache.commons.io.FileUtils to my import statements. But I get this error: xception in thread "main" java.lang.Error: Unresolved compilation problem: FileUtils cannot be resolved at com.org.RuleRunner.loadRuleFile(*RuleRunner.java:70*)// at com.org.RuleRunner.loadRules(*RuleRunner.java:45*) at com.org.RuleRunner.runStatelessRules(*RuleRunner.java:102*) at com.org.RulesTest.main(*RulesTest.java:40*) Could some one please tell me if there is an alternative way for converting/loading .brl files (business guided rule) to my knowledge base ? Or point me towards the correct download for org.apache.commons.io.FileUtils. Please help me out. Thank you. -M