Use this property if there is content that should be deleted from the finished data table. Each element stored will look for a matching Column Name and value and delete that row from the data table.
Example:
<DeleteExtraData>
<Delete>
<ColumnName>Group Value</ColumnName>
<ColumnValue/>
</Delete>
<Delete>…</Delete>
</DeleteExtraData>
The name of the column to search within.
The value to search for. For null, enter nothing.