For night hours, from 11pm to 7am, for example, the file must contain a column with the next day’s timetable (7am in the example). The “timetable end” column must contain the formula **=next day timetable cell+ 24:00:00**. Cells must be in the format Time -> 13:37:46 |cell_format|.
The spreadsheet structure is corrupted. Column headers are offset relative to their content, for example. Opening the csv file in a text editor can help you identify the mis-match.
When you click on the field to edit, instructions appear in a popover. They might, for example, tell you how to format the data. :numref:`explanation_window_colum_lists`
**Empty vehicle** (optional): indicate if this destination is an emptying point, meaning the entire load must be removed from the vehicle at this point. **Fill vehicle** (optional): indicate if this destination is a filling point, meaning the vehicle must be loaded at this point.
cynthia