file to validate [mzML,mzData,featureXML,mzid,idXML,consensusXML,mzXML,ini,pepXML,TraML,xml]schema to validate against.#br#If no schema is given, the file is validated against the latest schema of the file type. [xsd,opt.]The text sent to standard out during the execution of XMLValidator.The text sent to standard error during the execution of XMLValidator. (If it appears in gray, it's the output of a previously failing run which is preserved for your trouble shooting.)