You are the best person to ascertain what holds value in your life. This includes your electronic data. Whether it’s documents you have spent hours on, presentations you use monthly, email correspondence that you cherish, calendar events, contact information, you should not rely solely on others to backup this data.
With many Google products, you can download an archive of your data:
After clicking “Create an Archive” choose the products you want an archive for, or choose all of them, then click “Create Archive”.
Archives can take hours or even days to create, but if you leave the checkbox alone for “Email me when the archive is ready” you will get an email when it’s done.
When you are done downloading the archive put it in a safe place. For the least risk, put it in two places, so if disaster strikes one location, your data will be safe in the other.
For more information on this Google Service, read here: Download your data: FAQ