Image 1 of 1: ‘multiple tables’
![multiple tables](../fig/multiple-tables-example2.png)
Image 1 of 1: ‘filling in zeros’
![filling in zeros](../fig/zeros-example.png)
Image 1 of 1: ‘formatting’
![formatting](../fig/bad-formatting.png)
Image 1 of 1: ‘good formatting’
![good formatting](../fig/better-formatting.png)
Image 1 of 1: ‘comments in cells’
![comments in cells](../fig/comments-in-cells.png)
Image 1 of 1: ‘Many formats, many ambiguities’
![Many formats, many ambiguities](../fig/excel_dates_1.jpg)
Image 1 of 1: ‘dates exercise 1’
![dates exercise 1](../fig/solution_exercise_1_dates.png)
Image 1 of 1: ‘Image of data validation tab in Excel’
![Image of data validation tab in Excel](../fig/data-validation-tab.png)
Image 1 of 1: ‘Image of data validation tab in LibreOffice’
![Image of data validation tab in LibreOffice](../fig/data-validation-tab-LibreOffice.png)
Image 1 of 1: ‘Image of data validation tab for number rules in Excel’
![Image of data validation tab for number rules in Excel](../fig/data-validation-numbers.png)
Image 1 of 1: ‘Image of data validation tab in LibreOffice’
![Image of data validation tab in LibreOffice](../fig/data-validation-numbers-LibreOffice.png)
Image 1 of 1: ‘Image of error message for inputing invalid data in Excel’
![Image of error message for inputing invalid data in Excel](../fig/error-invalid-data.png)
Image 1 of 1: ‘Image of error message for inputing invalid data in LibreOffice’
![Image of error message for inputing invalid data in LibreOffice](../fig/error-invalid-data-LibreOffice.png)
Image 1 of 1: ‘Image of Input Message tab in Excel’
![Image of Input Message tab in Excel](../fig/input_message.png)
Image 1 of 1: ‘Image of Input Message tab in LibreOffice’
![Image of Input Message tab in LibreOffice](../fig/input_message_LibreOffice.png)
Image 1 of 1: ‘Image of Error Alert tab in Excel’
![Image of Error Alert tab in Excel](../fig/error_alert.png)
Image 1 of 1: ‘Image of Error Alert tab in LibreOffice’
![Image of Error Alert tab in LibreOffice](../fig/error_alert_LibreOffice.png)
Image 1 of 1: ‘Image of data validation tab in Excel’
![Image of data validation tab in Excel](../fig/data-validation-tab.png)
Image 1 of 1: ‘Image of data validation tab in Excel’
![Image of data validation tab in Excel](../fig/data-validation-tab-LibreOffice.png)
Image 1 of 1: ‘Image of selecting a range of values to allow in Excel’
![Image of selecting a range of values to allow in Excel](../fig/select-range-of-values.png)
Image 1 of 1: ‘Image of selecting a range of values to allow in LibreOffice’
![Image of selecting a range of values to allow in LibreOffice](../fig/select-range-of-values-LibreOffice.png)
Image 1 of 1: ‘Image of filled in range of values to allow in LibreOffice’
![Image of filled in range of values to allow in LibreOffice](../fig/filled-range-of-values-LibreOffice.png)
Image 1 of 1: ‘Saving an Excel file to CSV’
![Saving an Excel file to CSV](../fig/excel-to-csv.png)