Use this property if there is content that you want to have deleted from the finished data table. Each element stored will look for the 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.