The dashboard now offers a new tab called DATA, that can be used for data access.
Use it to get the measurements from any of your units in either CSV or JSON format, that can be saved offline and used for further processing.
Everything is made simple: select the time interval you are interested in, and the data format, either CSV or JSON. CSV can be imported in Excel and is a well established format, older than JSON.
Select the particular Sensor you want to see the data for, eg. Temperature . Click go, and follow the indications on screen. The data will open in a new tab in your browser (eg.Safari), or it will trigger a download (eg. Chrome), depending on your browser.