Got files you want to scan and send? You can do the scan from within iPhone’s Mail app. Charlotte Henry has the step-by-step.
I noticed recently that the tool was embedded directly in the Mail app on the iPhone. (I think it came along with iOS 13.2.3.) It means you can scan documents and send them as an email attachment within the same app. As with the tool in the Files app, this is very easy to use.
It’s also in the Control Center utility. Very handy.