public ExternalBookBlock(String url, String[] sheetNames) {_externalBookRecord = SupBookRecord.createExternalReferences(url, sheetNames);_crnBlocks = new CRNBlock[0];}

public ExternalBookBlock(String url, String[] sheetNames){_externalBookRecord = SupBookRecord.CreateExternalReferences(url, sheetNames);_crnBlocks = new CRNBlock[0];}
