There are two options. You can choose to email yourself the .csv of a specific data log when you want (in the Data Options screen). Or, you can specify a daily

There are two options. You can choose to email yourself the .csv of a specific data log when you want (in the Data Options screen). Or, you can specify a daily, weekly, monthly, or never export in the Settings panel. This will prompt you with an email when it's time (just hit send and you should be good to go). This export contains data from all of your logs.