Please go to the menu Infrastructure/Charging Stations/Station list and select a charging station. Choose the tab Charge logs and there you find the button export on the right side. You can start exporting a CSV data sheet from there.
Please note that the export file is not opened in a tap, but is saved locally, e.g. in the Downloads folder.
If problems occur, please try another browser; e.g. Google Chrome.
After you have saved the CSV file on your computer, you can import it with your spreadsheet program and save it in the required format.
All relevant files such as Charging Station, EVSE-ID, Contact, Start and Stop are listed here.