If ABBYY FineReader failed to correctly detect the rows and columns in a table while running automatically, you can adjust the layout manually and re-run the OCR process.
Show an example of a complex table...
Editing Tables in the Image window or the Zoom window:
Use the Areas menu commands and the shortcut menu by right-clicking the selected Table area to:
Tip. To toggle separators on or off, select the on the pop-up toolbar.
For details, see Vertical or Inverted Text Not Recognized Properly, Adjusting Area Shapes and Area Borders and Changing Text Properties.