1) When you receive an email with an attachment, you will have a preview of it
2) When you mouse over it there will be two icons: Download (downward facing arrow)
and Save to Drive (looks a bit like the “recycle” logo)
3) If you click the Download option, it will be saved to your Downloads folder on your computer, if you click the Save to Drive option, a dialogue box will appear, and you can select which folder in your drive you want the file to be saved in
4) If the email you have received has multiple attachments, you will be able to download or save them all at once, or posting them (images only) to your Google+ page
5) If you click on an item, without selecting Save or Download, a preview will load in your browser window
SOURCE MATERIAL:
https://support.google.com/mail/answer/30719?hl=en
Last Updated: 3/9/20