Choose to get field name automatically:
By Row: means to set the 'item name' above the cells as the 'Field name'.
Number of rows as the top header: means to set the combined 'item name' in how many rows on the top as the 'Field name'.
Downward expandable: means whether it is allowed to expand downward when the data fields are filled.
By Column: means to set the 'item name' on the left of cells as the 'Field name'.
Number of rows as the left header: means to set the combined 'item name' in how many rows on the left as the 'Field name'.
Rightward expandable: means whether it is allowed to expand rightward when the data fields are filled.