public HeaderBlockWriter()
{
_data = new byte[ POIFSConstants.BIG_BLOCK_SIZE ];
Arrays.fill(_data, _default_value);
new LongField(_signature_offset, _signature, _data);
new IntegerField(0x08, 0, _data);
new IntegerField(0x0c, 0, _data);
new IntegerField(0x10, 0, _data);
new IntegerField(0x14, 0, _data);
new ShortField(0x18, ( short ) 0x3b, _data);