In the sample part of the spreadsheetML I want to validate the value of the FILEFORMAT to doc while saving the document in MS excel on windows os and by using xmllint command on linux os using XSD.Any one has IDEA how to do it ?\[code\]<Worksheet ss:Name="testing_SML"> <Table ss:ExpandedColumnCount="3" ss:ExpandedRowCount="9" x:FullColumns="1" x:FullRows="1" ssefaultRowHeight="15"> <Column ss:Width="108"/> <Column ss:Width="309"/> <Column ss:Width="165"/> <Row ss:AutoFitHeight="0"> <Cell ss:StyleID="s62"><Data ss:Type="String">FILEFORMAT </Data></Cell> <Cell ss:StyleID="s62"><Data ss:Type="String">doc</Data></Cell> <Cell ss:StyleID="s62"/> </Row> <Row ss:AutoFitHeight="0"> <Cell ss:StyleID="s62"><Data ss:Type="String">FILEVERSION</Data></Cell> <Cell ss:StyleID="s62"><Data ss:Type="Number">1</Data></Cell> <Cell ss:StyleID="s62"/> </Row>enter code here </Table></Worksheet>\[/code\]