You can attach a saved document to an email.

1. Tap in the email where you want to insert the document, then tap in the format bar above the keyboard.
2. Tap above the keyboard, then locate the document in Files.

   In Files, tap Browse or Recent at the bottom of the screen, then tap a file, location, or folder to open it.

3. Tap the document to insert it into your email.

You can also drag a file to your email to attach it to the email.