docs: public void resetRow(int filepos, int rowsize) throws IOException {
  
          mark = 0;
  
          reset();
  
          if (buf.length < rowsize) {
              buf = new byte[rowsize];
          }
  
          filePos = filepos;
          size    = count = rowsize;
          pos     = 4;
          buf[0]  = (byte) ((rowsize >>> 24) & 0xFF);
          buf[1]  = (byte) ((rowsize >>> 16) & 0xFF);
          buf[2]  = (byte) ((rowsize >>> 8) & 0xFF);
          buf[3]  = (byte) ((rowsize >>> 0) & 0xFF);
      }