code: public Map<String,InputStream> loadLinkedWorkbooks(String[] fileNames) throws IOException {
  	HashMap<String,InputStream> result = new HashMap<>();
  	if (fileNames==null) {
  		return result;
  	}
  	for (String currentFile: fileNames) {
  		Path currentPath=new Path(currentFile);
  		InputStream currentInputStream = openFile(currentPath);
  		result.put(currentPath.getName(), currentInputStream); 
  	}
  	return result;
  }
docs: /*
  Loads linked workbooks as InputStreams
  
  @param fileNames List of filenames (full URI/path) to load
  
  @return a Map of filenames (without path!) with associated InputStreams
  
  @throws java.io.IOException in case of issues loading a file