Google-drive – How to locate WhatsApp backup file in Google Drive

Seems like they can't be accessed from anyone but the app itself:

The user cannot directly access data in the hidden app folders, only the app can access them. This is designed for configuration or other hidden data that the user should not directly manipulate. (The user can choose to delete the data to free up the space used by it.)

The only way the user can get access to it is via some functionality exposed by the specific app.

Source: https://stackoverflow.com/a/22844899/1045199

EDIT (thanks Ruben) See Google documentation: https://developers.google.com/drive/web/appdata

There's no native way to email documents to Google Drive. You'll need a third-party tool.

I would use If This Then That (IFTTT). By combining the right channels you can get the attachments from an email message into your Google Drive.

There are a couple of ways to go about it. Since you're using Google Drive, you presumably have a Gmail account. There are already several recipes that will take attachments (under the right circumstances) and save them to Drive for you, such as this one: Save new email attachments to Google Drive. Essentially, it looks for one or more attachments on any email received at your Gmail address and saves it into the Google Drive folder you designate. By using a slightly different trigger, you can have it only save attachments with messages from your work address or with certain keywords in the subject. (Use the "New mail in inbox from search" trigger with has:attachment and whatever other search term you need.)

Another way to do it, without getting email involved, is to use the Email channel and the right trigger.

You could certainly just send email to trigger@recipe.ifttt.com and have it fire, but then you're precluding using the same trigger for other recipes. I suggest using the "Send IFTTT an email tagged" trigger.

Then, the action is simply to save to Google Drive.

Of course, you'll need to send the email from the email address associated with your IFTTT account in order for it to work.

I've created a recipe which does just that.