You can not only export the planning to Excel with the rest of data: you can also export it to PDF. You only have to access the group, click on the planning tab and click on the wheel at the top right side, where you will see the Export data option.
Once you press on the Export data option, you will be able to choose the range of dates you want to export and whether you want to export the planning or the follow up. If you select all options, you will be able to export all the planning.
NOTE: This option is available on the web version.