element  thead 

diagram
version	V3_0
namespace	http://www.oasis-open.org/tables/exchange/1.0
type	tbl:thead
children	tbl:row
used by	complexType   {http://www.oasis-open.org/tables/exchange/1.0}:tgroup
attributes	Name   Type   Use   Default   Fixed   annotation tbl:valign   xsd:token
source	<xsd:element  name="thead"  type="tbl:thead"/>