Data Column
Data Columns represent the presentation of tabular data in a document. Data Columns are created as children of a Data Table. The order of the Data Columns in the Node Tree should reflect the column order of the table on the document. The top Data Column will correspond to the leftmost column. The bottom Data Column will correspond to the rightmost. This is also where you set the Header Extractor to find column headings if using the Header Value extract method.