You need to copy and paste all of the audio files, and make a blank .txt file. Then, press the keys SHIFT, CONTROL/COMMAND, and 'c' together, before pressing the keys SHIFT, CONTROL/COMMAND, and 'v' together in the text document, before typing "=,,,,," in each of the file names before "=,,,,," is in every file name. Then, rename the text document to 'oto.ini'. The voicebank should appear in OpenUtau now.