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import org.apache.commons.io.FileUtils as FU

byte[] readByte = FU.readFileToByteArray(new File("test.txt"))

byte[] first   = Arrays.copyOfRange(readByte, 0, 80)

String first_s = new String(first, "UTF-8")

println (first)

println (first_s)

byte[] all_size = Arrays.copyOfRange(readByte, 80, 84)

long get_size = (all_size[3] & 0xff) << 24 | 

                (all_size[2] & 0xff) << 16 | 

                (all_size[1] & 0xff) << 8  |

                (all_size[0] & 0xff);

println(get_size)
for (int i:0..< get_size) {

  byte[] get_data = Arrays.copyOfRange(readByte, 84+(50*i), 84+(50*(i+1)))

  for (int k:0..<12) {

    byte[] get_data_k = Arrays.copyOfRange(get_data, k*4, (k+1)*4)

    byte[] rev_data = [

      get_data_k[3],

      get_data_k[2],

      get_data_k[1],

      get_data_k[0] ]

    ByteArrayInputStream bs = new ByteArrayInputStream(rev_data)

    DataInputStream ds = new DataInputStream(bs);

    float f = ds.readFloat()

    println("["+i+"]["+k+"]"+f)

  }

}